Merge pull request #187 from skeleton/issue-183

Fix line breaks on CSV reader

.gitattributes

@@ -0,0 +1,11 @@
+# Ignore all test and documentation for archive
+/tests              export-ignore
+/.editorconfig      export-ignore
+/.gitattributes     export-ignore
+/.gitignore         export-ignore
+/.scrutinizer.yml   export-ignore
+/.travis.yml        export-ignore
+/composer.lock      export-ignore
+/CONTRIBUTING.md    export-ignore
+/logo.png           export-ignore
+/phpunit.xml        export-ignore

README.md

@@ -2,7 +2,7 @@
 
 [![Latest Stable Version](https://poser.pugx.org/box/spout/v/stable)](https://packagist.org/packages/box/spout)
 [![Project Status](http://opensource.box.com/badges/active.svg)](http://opensource.box.com/badges)
-[![Build Status](https://travis-ci.org/box/spout.svg?branch=master)](http://travis-ci.org/box/spout)
+[![Build Status](https://travis-ci.org/box/spout.svg?branch=master)](https://travis-ci.org/box/spout)
 [![Code Coverage](https://scrutinizer-ci.com/g/box/spout/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/box/spout/?branch=master)
 [![Total Downloads](https://poser.pugx.org/box/spout/downloads)](https://packagist.org/packages/box/spout)
 [![License](https://poser.pugx.org/box/spout/license)](https://packagist.org/packages/box/spout)
@@ -98,6 +98,8 @@ For XLSX and ODS files, the number of rows per sheet is limited to 1,048,576. By
 
 ## Advanced usage
 
+If you are looking for  how to perform some common, more advanced tasks with Spout, please take a look at the [Wiki](https://github.com/box/spout/wiki). It contains code snippets, ready to be used.
+
 ### Configuring the CSV reader and writer
 
 It is possible to configure both the CSV reader and writer to specify the field separator as well as the field enclosure:
@@ -108,6 +110,7 @@ use Box\Spout\Common\Type;
 $reader = ReaderFactory::create(Type::CSV);
 $reader->setFieldDelimiter('|');
 $reader->setFieldEnclosure('@');
+$reader->setEndOfLineCharacter("\r");
 ```
 
 Additionally, if you need to read non UTF-8 files, you can specify the encoding of your file this way:
@@ -157,7 +160,7 @@ Font      | Bold          | `StyleBuilder::setFontBold()`
           | Strikethrough | `StyleBuilder::setFontStrikethrough()`
           | Font name     | `StyleBuilder::setFontName('Arial')`
           | Font size     | `StyleBuilder::setFontSize(14)`
-          | Font color    | `StyleBuilder::setFontSize(Color::BLUE)`<br>`StyleBuilder::setFontSize(Color::rgb(0, 128, 255))`
+          | Font color    | `StyleBuilder::setFontColor(Color::BLUE)`<br>`StyleBuilder::setFontColor(Color::rgb(0, 128, 255))`
 Alignment | Wrap text     | `StyleBuilder::setShouldWrapText()`
 
 
@@ -275,10 +278,12 @@ If you just want to check that everything is working as expected, executing the
 If you want to run performance tests, you will need to checkout the `perf-tests` branch. Multiple test suites can then be run, depending on the expected output:
 
 * `phpunit` - runs the whole test suite (unit + functional + performance tests)
-* `phpunit --testuite no-perf-tests` - only runs the unit and functional tests
+* `phpunit --exclude-group perf-tests` - only runs the unit and functional tests
-* `phpunit --testuite perf-tests` - only runs the performance tests
+* `phpunit --group perf-tests` - only runs the performance tests
 
-For information, the performance tests take about one hour to run (processing 2 million rows files is not a quick thing).
+For information, the performance tests take about 30 minutes to run (processing 1 million rows files is not a quick thing).
+
+> Performance tests status: [![Build Status](https://travis-ci.org/box/spout.svg?branch=perf-tests)](https://travis-ci.org/box/spout)
 
 
 ## Frequently Asked Questions

composer.json

@@ -29,5 +29,11 @@
         "psr-4": {
             "Box\\Spout\\": "src/Spout"
         }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.5.x-dev"
         }
+    }
+
 }

src/Spout/Common/Helper/GlobalFunctionsHelper.php

@@ -281,32 +281,14 @@ class GlobalFunctionsHelper
     }
 
     /**
-     * Wrapper around global function stream_get_line()
+     * Wrapper around global function stream_get_wrappers()
-     * @see stream_get_line()
+     * @see stream_get_wrappers()
      *
-     * @param resource $handle
-     * @param int $length
-     * @param string|void $ending
-     * @return string|bool
-     */
-    public function stream_get_line($handle, $length, $ending = null)
-    {
-        return stream_get_line($handle, $length, $ending);
-    }
-
-    /**
-     * Wrapper around global function str_getcsv()
-     * @see str_getcsv()
-     *
-     * @param string $input
-     * @param string|void $delimiter
-     * @param string|void $enclosure
-     * @param string|void $escape
      * @return array
      */
-    public function str_getcsv($input, $delimiter = null, $enclosure = null, $escape = null)
+    public function stream_get_wrappers()
     {
-        return str_getcsv($input, $delimiter, $enclosure, $escape);
+        return stream_get_wrappers();
     }
 
     /**

src/Spout/Reader/AbstractReader.php

@@ -19,6 +19,13 @@ abstract class AbstractReader implements ReaderInterface
     /** @var \Box\Spout\Common\Helper\GlobalFunctionsHelper Helper to work with global functions */
     protected $globalFunctionsHelper;
 
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    abstract protected function doesSupportStreamWrapper();
+
     /**
      * Opens the file at the given file path to make it ready to be read
      *
@@ -62,6 +69,10 @@ abstract class AbstractReader implements ReaderInterface
      */
     public function open($filePath)
     {
+        if ($this->isStreamWrapper($filePath) && (!$this->doesSupportStreamWrapper() || !$this->isSupportedStreamWrapper($filePath))) {
+            throw new IOException("Could not open $filePath for reading! Stream wrapper used is not supported for this type of file.");
+        }
+
         if (!$this->isPhpStream($filePath)) {
             // we skip the checks if the provided file path points to a PHP stream
             if (!$this->globalFunctionsHelper->file_exists($filePath)) {
@@ -72,8 +83,7 @@ abstract class AbstractReader implements ReaderInterface
         }
 
         try {
-            // Need to use realpath to fix "Can't open file" on some Windows setup
+            $fileRealPath = $this->getFileRealPath($filePath);
-            $fileRealPath = realpath($filePath);
             $this->openReader($fileRealPath);
             $this->isStreamOpened = true;
         } catch (\Exception $exception) {
@@ -81,6 +91,67 @@ abstract class AbstractReader implements ReaderInterface
         }
     }
 
+    /**
+     * Returns the real path of the given path.
+     * If the given path is a valid stream wrapper, returns the path unchanged.
+     *
+     * @param string $filePath
+     * @return string
+     */
+    protected function getFileRealPath($filePath)
+    {
+        if ($this->isSupportedStreamWrapper($filePath)) {
+            return $filePath;
+        }
+
+        // Need to use realpath to fix "Can't open file" on some Windows setup
+        return realpath($filePath);
+    }
+
+    /**
+     * Returns the scheme of the custom stream wrapper, if the path indicates a stream wrapper is used.
+     * For example, php://temp => php, s3://path/to/file => s3...
+     *
+     * @param string $filePath Path of the file to be read
+     * @return string|null The stream wrapper scheme or NULL if not a stream wrapper
+     */
+    protected function getStreamWrapperScheme($filePath)
+    {
+        $streamScheme = null;
+        if (preg_match('/^(\w+):\/\//', $filePath, $matches)) {
+            $streamScheme = $matches[1];
+        }
+        return $streamScheme;
+    }
+
+    /**
+     * Checks if the given path is an unsupported stream wrapper
+     * (like local path, php://temp, mystream://foo/bar...).
+     *
+     * @param string $filePath Path of the file to be read
+     * @return bool Whether the given path is an unsupported stream wrapper
+     */
+    protected function isStreamWrapper($filePath)
+    {
+        return ($this->getStreamWrapperScheme($filePath) !== null);
+    }
+
+    /**
+     * Checks if the given path is an supported stream wrapper
+     * (like php://temp, mystream://foo/bar...).
+     * If the given path is a local path, returns true.
+     *
+     * @param string $filePath Path of the file to be read
+     * @return bool Whether the given path is an supported stream wrapper
+     */
+    protected function isSupportedStreamWrapper($filePath)
+    {
+        $streamScheme = $this->getStreamWrapperScheme($filePath);
+        return ($streamScheme !== null) ?
+            in_array($streamScheme, $this->globalFunctionsHelper->stream_get_wrappers()) :
+            true;
+    }
+
     /**
      * Checks if a path is a PHP stream (like php://output, php://memory, ...)
      *
@@ -89,7 +160,8 @@ abstract class AbstractReader implements ReaderInterface
      */
     protected function isPhpStream($filePath)
     {
-        return (strpos($filePath, 'php://') === 0);
+        $streamScheme = $this->getStreamWrapperScheme($filePath);
+        return ($streamScheme === 'php');
     }
 
     /**

src/Spout/Reader/CSV/Reader.php

@@ -29,6 +29,12 @@ class Reader extends AbstractReader
     /** @var string Encoding of the CSV file to be read */
     protected $encoding = EncodingHelper::ENCODING_UTF8;
 
+    /** @var string Defines the End of line */
+    protected $endOfLineCharacter = "\n";
+
+    /** @var string */
+    protected $autoDetectLineEndings;
+
     /**
      * Sets the field delimiter for the CSV.
      * Needs to be called before opening the reader.
@@ -68,6 +74,29 @@ class Reader extends AbstractReader
         return $this;
     }
 
+    /**
+     * Sets the EOL for the CSV.
+     * Needs to be called before opening the reader.
+     *
+     * @param string $endOfLineCharacter used to properly get lines from the CSV file.
+     * @return Reader
+     */
+    public function setEndOfLineCharacter($endOfLineCharacter)
+    {
+        $this->endOfLineCharacter = $endOfLineCharacter;
+        return $this;
+    }
+
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    protected function doesSupportStreamWrapper()
+    {
+        return true;
+    }
+
     /**
      * Opens the file at the given path to make it ready to be read.
      * If setEncoding() was not called, it assumes that the file is encoded in UTF-8.
@@ -78,6 +107,9 @@ class Reader extends AbstractReader
      */
     protected function openReader($filePath)
     {
+        $this->autoDetectLineEndings = ini_get('auto_detect_line_endings');
+        ini_set('auto_detect_line_endings', '1');
+
         $this->filePointer = $this->globalFunctionsHelper->fopen($filePath, 'r');
         if (!$this->filePointer) {
             throw new IOException("Could not open file $filePath for reading.");
@@ -88,6 +120,7 @@ class Reader extends AbstractReader
             $this->fieldDelimiter,
             $this->fieldEnclosure,
             $this->encoding,
+            $this->endOfLineCharacter,
             $this->globalFunctionsHelper
         );
     }
@@ -113,5 +146,7 @@ class Reader extends AbstractReader
         if ($this->filePointer) {
             $this->globalFunctionsHelper->fclose($this->filePointer);
         }
+
+        ini_set('auto_detect_line_endings', $this->autoDetectLineEndings);
     }
 }

src/Spout/Reader/CSV/RowIterator.php

@@ -14,7 +14,7 @@ use Box\Spout\Common\Helper\EncodingHelper;
 class RowIterator implements IteratorInterface
 {
     /**
-     * If no value is given to stream_get_line(), it defaults to 8192 (which may be too low).
+     * If no value is given to fgetcsv(), it defaults to 8192 (which may be too low).
      * Alignement with other functions like fgets() is discussed here: https://bugs.php.net/bug.php?id=48421
      */
     const MAX_READ_BYTES_PER_LINE = 32768;
@@ -49,6 +49,9 @@ class RowIterator implements IteratorInterface
     /** @var string End of line delimiter, encoded using the same encoding as the CSV */
     protected $encodedEOLDelimiter;
 
+    /** @var string End of line delimiter, given by the user as input. */
+    protected $inputEOLDelimiter;
+
     /**
      * @param resource $filePointer Pointer to the CSV file to read
      * @param string $fieldDelimiter Character that delimits fields
@@ -56,12 +59,13 @@ class RowIterator implements IteratorInterface
      * @param string $encoding Encoding of the CSV file to be read
      * @param \Box\Spout\Common\Helper\GlobalFunctionsHelper $globalFunctionsHelper
      */
-    public function __construct($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $globalFunctionsHelper)
+    public function __construct($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $endOfLineDelimiter, $globalFunctionsHelper)
     {
         $this->filePointer = $filePointer;
         $this->fieldDelimiter = $fieldDelimiter;
         $this->fieldEnclosure = $fieldEnclosure;
         $this->encoding = $encoding;
+        $this->inputEOLDelimiter = $endOfLineDelimiter;
         $this->globalFunctionsHelper = $globalFunctionsHelper;
 
         $this->encodingHelper = new EncodingHelper($globalFunctionsHelper);
@@ -124,16 +128,12 @@ class RowIterator implements IteratorInterface
         }
 
         do {
-            $lineData = false;
+            $rowData = $this->getNextUTF8EncodedRow();
-            $utf8EncodedLineData = $this->getNextUTF8EncodedLine();
-            if ($utf8EncodedLineData !== false) {
-                $lineData = $this->globalFunctionsHelper->str_getcsv($utf8EncodedLineData, $this->fieldDelimiter, $this->fieldEnclosure);
-            }
             $hasNowReachedEndOfFile = $this->globalFunctionsHelper->feof($this->filePointer);
-        } while (($lineData === false && !$hasNowReachedEndOfFile) || $this->isEmptyLine($lineData));
+        } while (($rowData === false && !$hasNowReachedEndOfFile) || $this->isEmptyLine($rowData));
 
-        if ($lineData !== false) {
+        if ($rowData !== false) {
-            $this->rowDataBuffer = $lineData;
+            $this->rowDataBuffer = $rowData;
             $this->numReadRows++;
         } else {
             // If we reach this point, it means end of file was reached.
@@ -143,24 +143,39 @@ class RowIterator implements IteratorInterface
     }
 
     /**
-     * Returns the next line, converted if necessary to UTF-8.
+     * Returns the next row, converted if necessary to UTF-8.
-     * Neither fgets nor fgetcsv don't work with non UTF-8 data... so we need to do some things manually.
+     * As fgetcsv() does not manage correctly encoding for non UTF-8 data,
+     * we remove manually whitespace with ltrim or rtrim (depending on the order of the bytes)
      *
-     * @return string|false The next line for the current file pointer, encoded in UTF-8 or FALSE if nothing to read
+     * @return array|false The row for the current file pointer, encoded in UTF-8 or FALSE if nothing to read
      * @throws \Box\Spout\Common\Exception\EncodingConversionException If unable to convert data to UTF-8
      */
-    protected function getNextUTF8EncodedLine()
+    protected function getNextUTF8EncodedRow()
     {
-        // Read until the EOL delimiter or EOF is reached. The delimiter's encoding needs to match the CSV's encoding.
+        $encodedRowData = fgetcsv($this->filePointer, self::MAX_READ_BYTES_PER_LINE, $this->fieldDelimiter, $this->fieldEnclosure);
-        $encodedEOLDelimiter = $this->getEncodedEOLDelimiter();
+        if (false === $encodedRowData) {
-        $encodedLineData = $this->globalFunctionsHelper->stream_get_line($this->filePointer, self::MAX_READ_BYTES_PER_LINE, $encodedEOLDelimiter);
+            return false;
+        }
 
-        // If the line could have been read, it can be converted to UTF-8
+        foreach ($encodedRowData as $cellIndex => $cellValue) {
-        $utf8EncodedLineData = ($encodedLineData !== false) ?
+            switch($this->encoding) {
-            $this->encodingHelper->attemptConversionToUTF8($encodedLineData, $this->encoding) :
+                case EncodingHelper::ENCODING_UTF16_LE:
-            false;
+                case EncodingHelper::ENCODING_UTF32_LE:
+                    // remove whitespace from the beginning of a string as fgetcsv() add extra whitespace when it try to explode non UTF-8 data
+                    $cellValue = ltrim($cellValue);
+                    break;
 
-        return $utf8EncodedLineData;
+                case EncodingHelper::ENCODING_UTF16_BE:
+                case EncodingHelper::ENCODING_UTF32_BE:
+                    // remove whitespace from the end of a string as fgetcsv() add extra whitespace when it try to explode non UTF-8 data
+                    $cellValue = rtrim($cellValue);
+                    break;
+            }
+
+            $encodedRowData[$cellIndex] = $this->encodingHelper->attemptConversionToUTF8($cellValue, $this->encoding);
+        }
+
+        return $encodedRowData;
     }
 
     /**
@@ -172,7 +187,7 @@ class RowIterator implements IteratorInterface
     protected function getEncodedEOLDelimiter()
     {
         if (!isset($this->encodedEOLDelimiter)) {
-            $this->encodedEOLDelimiter = $this->encodingHelper->attemptConversionFromUTF8("\n", $this->encoding);
+            $this->encodedEOLDelimiter = $this->encodingHelper->attemptConversionFromUTF8($this->inputEOLDelimiter, $this->encoding);
         }
 
         return $this->encodedEOLDelimiter;

src/Spout/Reader/CSV/Sheet.php

@@ -21,9 +21,9 @@ class Sheet implements SheetInterface
      * @param string $encoding Encoding of the CSV file to be read
      * @param \Box\Spout\Common\Helper\GlobalFunctionsHelper $globalFunctionsHelper
      */
-    public function __construct($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $globalFunctionsHelper)
+    public function __construct($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $endOfLineCharacter, $globalFunctionsHelper)
     {
-        $this->rowIterator = new RowIterator($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $globalFunctionsHelper);
+        $this->rowIterator = new RowIterator($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $endOfLineCharacter, $globalFunctionsHelper);
     }
 
     /**

src/Spout/Reader/CSV/SheetIterator.php

@@ -25,9 +25,9 @@ class SheetIterator implements IteratorInterface
      * @param string $encoding Encoding of the CSV file to be read
      * @param \Box\Spout\Common\Helper\GlobalFunctionsHelper $globalFunctionsHelper
      */
-    public function __construct($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $globalFunctionsHelper)
+    public function __construct($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $endOfLineCharacter, $globalFunctionsHelper)
     {
-        $this->sheet = new Sheet($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $globalFunctionsHelper);
+        $this->sheet = new Sheet($filePointer, $fieldDelimiter, $fieldEnclosure, $encoding, $endOfLineCharacter, $globalFunctionsHelper);
     }
 
     /**

src/Spout/Reader/ODS/Helper/CellValueFormatter.php

@@ -47,7 +47,6 @@ class CellValueFormatter
 
     /**
      * Returns the (unescaped) correctly marshalled, cell value associated to the given XML node.
-     * @TODO Add other types !!
      * @see http://docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part1.html#refTable13
      *
      * @param \DOMNode $node
@@ -119,7 +118,8 @@ class CellValueFormatter
     protected function formatFloatCellValue($node)
     {
         $nodeValue = $node->getAttribute(self::XML_ATTRIBUTE_VALUE);
-        $cellValue = is_int($nodeValue) ? intval($nodeValue) : floatval($nodeValue);
+        $nodeIntValue = intval($nodeValue);
+        $cellValue = ($nodeIntValue == $nodeValue) ? $nodeIntValue : floatval($nodeValue);
         return $cellValue;
     }
 

src/Spout/Reader/ODS/Reader.php

@@ -19,6 +19,16 @@ class Reader extends AbstractReader
     /** @var SheetIterator To iterator over the ODS sheets */
     protected $sheetIterator;
 
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    protected function doesSupportStreamWrapper()
+    {
+        return false;
+    }
+
     /**
      * Opens the file at the given file path to make it ready to be read.
      *

src/Spout/Reader/ODS/RowIterator.php

@@ -20,6 +20,7 @@ class RowIterator implements IteratorInterface
     const XML_NODE_TABLE = 'table:table';
     const XML_NODE_ROW = 'table:table-row';
     const XML_NODE_CELL = 'table:table-cell';
+    const MAX_COLUMNS_EXCEL = 16384;
 
     /** Definition of XML attribute used to parse data */
     const XML_ATTRIBUTE_NUM_COLUMNS_REPEATED = 'table:number-columns-repeated';
@@ -127,22 +128,23 @@ class RowIterator implements IteratorInterface
 
                 } else if ($this->xmlReader->isPositionedOnEndingNode(self::XML_NODE_ROW)) {
                     // End of the row description
-                    $isEmptyRow = ($numCellsRead <= 1 && empty($cellValue));
+                    $isEmptyRow = ($numCellsRead <= 1 && $this->isEmptyCellValue($cellValue));
                     if ($isEmptyRow) {
                         // skip empty rows
                         $this->next();
                         return;
                     }
 
-                    // Only add value if the last read cell is not empty or does not need to repeat cell values.
+                    // Only add the value if the last read cell is not a trailing empty cell repeater in Excel.
+                    // The current count of read columns is determined by counting the values in $rowData.
                     // This is to avoid creating a lot of empty cells, as Excel adds a last empty "<table:table-cell>"
                     // with a number-columns-repeated value equals to the number of (supported columns - used columns).
-                    // In Excel, the number of supported columns is 16384, but we don't want to returns rows with always 16384 cells.
+                    // In Excel, the number of supported columns is 16384, but we don't want to returns rows with
-                    if (!empty($cellValue) || $numColumnsRepeated === 1) {
+                    // always 16384 cells.
+                    if ((count($rowData) + $numColumnsRepeated) !== self::MAX_COLUMNS_EXCEL) {
                         for ($i = 0; $i < $numColumnsRepeated; $i++) {
                             $rowData[] = $cellValue;
                         }
-
                         $this->numReadRows++;
                     }
                     break;
@@ -181,6 +183,17 @@ class RowIterator implements IteratorInterface
         return $this->cellValueFormatter->extractAndFormatNodeValue($node);
     }
 
+    /**
+     * empty() replacement that honours 0 as a valid value
+     *
+     * @param $value The cell value
+     * @return bool
+     */
+    protected function isEmptyCellValue($value)
+    {
+        return (!isset($value) || trim($value) === '');
+    }
+
     /**
      * Return the current element, from the buffer.
      * @link http://php.net/manual/en/iterator.current.php

src/Spout/Reader/ODS/Sheet.php

@@ -19,7 +19,7 @@ class Sheet implements SheetInterface
     /** @var int ID of the sheet */
     protected $id;
 
-    /** @var int Index of the sheet, based on order of creation (zero-based) */
+    /** @var int Index of the sheet, based on order in the workbook (zero-based) */
     protected $index;
 
     /** @var string Name of the sheet */
@@ -27,7 +27,7 @@ class Sheet implements SheetInterface
 
     /**
      * @param XMLReader $xmlReader XML Reader, positioned on the "<table:table>" element
-     * @param int $sheetIndex Index of the sheet, based on order of creation (zero-based)
+     * @param int $sheetIndex Index of the sheet, based on order in the workbook (zero-based)
      * @param string $sheetName Name of the sheet
      */
     public function __construct($xmlReader, $sheetIndex, $sheetName)
@@ -48,7 +48,7 @@ class Sheet implements SheetInterface
 
     /**
      * @api
-     * @return int Index of the sheet, based on order of creation (zero-based)
+     * @return int Index of the sheet, based on order in the workbook (zero-based)
      */
     public function getIndex()
     {

src/Spout/Reader/XLSX/Helper/CellHelper.php

@@ -12,6 +12,14 @@ use Box\Spout\Common\Exception\InvalidArgumentException;
  */
 class CellHelper
 {
+    // Using ord() is super slow... Using a pre-computed hash table instead.
+    private static $columnLetterToIndexMapping = [
+        'A' => 0, 'B' => 1, 'C' => 2, 'D' => 3, 'E' => 4, 'F' => 5, 'G' => 6,
+        'H' => 7, 'I' => 8, 'J' => 9, 'K' => 10, 'L' => 11, 'M' => 12, 'N' => 13,
+        'O' => 14, 'P' => 15, 'Q' => 16, 'R' => 17, 'S' => 18, 'T' => 19, 'U' => 20,
+        'V' => 21, 'W' => 22, 'X' => 23, 'Y' => 24, 'Z' => 25,
+    ];
+
     /**
      * Fills the missing indexes of an array with a given value.
      * For instance, $dataArray = []; $a[1] = 1; $a[3] = 3;
@@ -50,34 +58,31 @@ class CellHelper
         }
 
         $columnIndex = 0;
-        $capitalAAsciiValue = ord('A');
-        $capitalZAsciiValue = ord('Z');
-        $step = $capitalZAsciiValue - $capitalAAsciiValue + 1;
 
         // Remove row information
-        $column = preg_replace('/\d/', '', $cellIndex);
+        $columnLetters = preg_replace('/\d/', '', $cellIndex);
-        $columnLength = strlen($column);
 
-        /*
+        // strlen() is super slow too... Using isset() is way faster and not too unreadable,
-         * This is how the following loop will process the data:
+        // since we checked before that there are between 1 and 3 letters.
-         * A   => 0
+        $columnLength = isset($columnLetters[1]) ? (isset($columnLetters[2]) ? 3 : 2) : 1;
-         * Z   => 25
-         * AA  => 26   : (26^(2-1) * (0+1)) + 0
-         * AB  => 27   : (26^(2-1) * (0+1)) + 1
-         * BC  => 54   : (26^(2-1) * (1+1)) + 2
-         * BCZ => 1455 : (26^(3-1) * (1+1)) + (26^(2-1) * (2+1)) + 25
-         */
-        foreach (str_split($column) as $single_cell_index)
-        {
-            $currentColumnIndex = ord($single_cell_index) - $capitalAAsciiValue;
 
-            if ($columnLength === 1) {
+        // Looping over the different letters of the column is slower than this method.
-                $columnIndex += $currentColumnIndex;
+        // Also, not using the pow() function because it's slooooow...
-            } else {
+        switch ($columnLength) {
-                $columnIndex += pow($step, ($columnLength - 1)) * ($currentColumnIndex + 1);
+            case 1:
-            }
+                $columnIndex = (self::$columnLetterToIndexMapping[$columnLetters]);
-
+                break;
-            $columnLength--;
+            case 2:
+                $firstLetterIndex = (self::$columnLetterToIndexMapping[$columnLetters[0]] + 1) * 26;
+                $secondLetterIndex = self::$columnLetterToIndexMapping[$columnLetters[1]];
+                $columnIndex = $firstLetterIndex + $secondLetterIndex;
+                break;
+            case 3:
+                $firstLetterIndex = (self::$columnLetterToIndexMapping[$columnLetters[0]] + 1) * 676;
+                $secondLetterIndex = (self::$columnLetterToIndexMapping[$columnLetters[1]] + 1) * 26;
+                $thirdLetterIndex = self::$columnLetterToIndexMapping[$columnLetters[2]];
+                $columnIndex = $firstLetterIndex + $secondLetterIndex + $thirdLetterIndex;
+                break;
         }
 
         return $columnIndex;
@@ -86,12 +91,13 @@ class CellHelper
     /**
      * Returns whether a cell index is valid, in an Excel world.
      * To be valid, the cell index should start with capital letters and be followed by numbers.
+     * There can only be 3 letters, as there can only be 16,384 rows, which is equivalent to 'XFE'.
      *
      * @param string $cellIndex The Excel cell index ('A1', 'BC13', ...)
      * @return bool
      */
     protected static function isValidCellIndex($cellIndex)
     {
-        return (preg_match('/^[A-Z]+\d+$/', $cellIndex) === 1);
+        return (preg_match('/^[A-Z]{1,3}\d+$/', $cellIndex) === 1);
     }
 }

src/Spout/Reader/XLSX/Helper/CellValueFormatter.php

@@ -28,7 +28,6 @@ class CellValueFormatter
     const XML_ATTRIBUTE_STYLE_ID = 's';
 
     /** Constants used for date formatting */
-    const NUM_DAYS_FROM_JAN_1_1900_TO_JAN_1_1970 = 25569; // actually 25567 but accommodating for an Excel bug with some bisextile years
     const NUM_SECONDS_IN_ONE_DAY = 86400;
 
     /**
@@ -170,7 +169,8 @@ class CellValueFormatter
         if ($shouldFormatAsDate) {
             return $this->formatExcelTimestampValue(floatval($nodeValue));
         } else {
-            return is_int($nodeValue) ? intval($nodeValue) : floatval($nodeValue);
+            $nodeIntValue = intval($nodeValue);
+            return ($nodeIntValue == $nodeValue) ? $nodeIntValue : floatval($nodeValue);
         }
     }
 
@@ -183,17 +183,26 @@ class CellValueFormatter
      */
     protected function formatExcelTimestampValue($nodeValue)
     {
-        $numDaysSince1970Jan1 = $nodeValue - self::NUM_DAYS_FROM_JAN_1_1900_TO_JAN_1_1970;
-
         // Fix for the erroneous leap year in Excel
-        if ($nodeValue < self::ERRONEOUS_EXCEL_LEAP_YEAR_DAY) {
+        if (ceil($nodeValue) > self::ERRONEOUS_EXCEL_LEAP_YEAR_DAY) {
-            $numDaysSince1970Jan1++;
+            --$nodeValue;
         }
 
-        $unixTimestamp = round($numDaysSince1970Jan1 * self::NUM_SECONDS_IN_ONE_DAY);
+        // The value 1.0 represents 1900-01-01. Numbers below 1.0 are not valid Excel dates.
+        if ($nodeValue < 1.0) {
+            return null;
+        }
+
+        // Do not use any unix timestamps for calculation to prevent
+        // issues with numbers exceeding 2^31.
+        $secondsRemainder = fmod($nodeValue, 1) * self::NUM_SECONDS_IN_ONE_DAY;
+        $secondsRemainder = round($secondsRemainder, 0);
 
         try {
-            $cellValue = (new \DateTime())->setTimestamp($unixTimestamp);
+            $cellValue = \DateTime::createFromFormat('|Y-m-d', '1899-12-31');
+            $cellValue->modify('+' . intval($nodeValue) . 'days');
+            $cellValue->modify('+' . $secondsRemainder . 'seconds');
+
             return $cellValue;
         } catch (\Exception $e) {
             return null;

src/Spout/Reader/XLSX/Helper/SharedStringsCaching/FileBasedStrategy.php

@@ -143,7 +143,9 @@ class FileBasedStrategy implements CachingStrategyInterface
         }
 
         $sharedString = null;
-        if (array_key_exists($indexInFile, $this->inMemoryTempFileContents)) {
+
+        // Using isset here because it is way faster than array_key_exists...
+        if (isset($this->inMemoryTempFileContents[$indexInFile])) {
             $escapedSharedString = $this->inMemoryTempFileContents[$indexInFile];
             $sharedString = $this->unescapeLineFeed($escapedSharedString);
         }

src/Spout/Reader/XLSX/Helper/SheetHelper.php

@@ -13,9 +13,6 @@ use Box\Spout\Reader\XLSX\Sheet;
  */
 class SheetHelper
 {
-    /** Extension for XML files */
-    const XML_EXTENSION = '.xml';
-
     /** Paths of XML files relative to the XLSX file root */
     const CONTENT_TYPES_XML_FILE_PATH = '[Content_Types].xml';
     const WORKBOOK_XML_RELS_FILE_PATH = 'xl/_rels/workbook.xml.rels';
@@ -79,9 +76,15 @@ class SheetHelper
             $sheetNode = $sheetNodes[$i];
             $sheetDataXMLFilePath = $sheetNode->getAttribute('PartName');
 
-            $sheets[] = $this->getSheetFromXML($sheetDataXMLFilePath, $i);
+            $sheets[] = $this->getSheetFromXML($sheetDataXMLFilePath);
         }
 
+        // make sure the sheets are sorted by index
+        // (as the sheets are not necessarily in this order in the XML file)
+        usort($sheets, function ($sheet1, $sheet2) {
+            return ($sheet1->getIndex() - $sheet2->getIndex());
+        });
+
         return $sheets;
     }
 
@@ -91,60 +94,37 @@ class SheetHelper
      * Then we look at "xl/worbook.xml" to find the sheet entry associated to the found ID.
      * The entry contains the ID and name of the sheet.
      *
-     * If this piece of data can't be found by parsing the different XML files, the ID will default
-     * to the sheet index, based on order in [Content_Types].xml. Similarly, the sheet's name will
-     * default to the data sheet XML file name ("xl/worksheets/sheet2.xml" => "sheet2").
-     *
      * @param string $sheetDataXMLFilePath Path of the sheet data XML file as in [Content_Types].xml
-     * @param int $sheetIndexZeroBased Index of the sheet, based on order in [Content_Types].xml (zero-based)
      * @return \Box\Spout\Reader\XLSX\Sheet Sheet instance
      */
-    protected function getSheetFromXML($sheetDataXMLFilePath, $sheetIndexZeroBased)
+    protected function getSheetFromXML($sheetDataXMLFilePath)
     {
-        $sheetName = $this->getDefaultSheetName($sheetDataXMLFilePath);
+        // In [Content_Types].xml, the path is "/xl/worksheets/sheet1.xml"
-
+        // In workbook.xml.rels, it is only "worksheets/sheet1.xml"
-        /*
-         * In [Content_Types].xml, the path is "/xl/worksheets/sheet1.xml"
-         * In workbook.xml.rels, it is only "worksheets/sheet1.xml"
-         */
         $sheetDataXMLFilePathInWorkbookXMLRels = ltrim($sheetDataXMLFilePath, '/xl/');
 
         // find the node associated to the given file path
         $workbookXMLResElement = $this->getWorkbookXMLRelsAsXMLElement();
         $relationshipNodes = $workbookXMLResElement->xpath('//ns:Relationship[@Target="' . $sheetDataXMLFilePathInWorkbookXMLRels . '"]');
-
-        if (count($relationshipNodes) === 1) {
         $relationshipNode = $relationshipNodes[0];
-            $sheetId = $relationshipNode->getAttribute('Id');
+
+        $relationshipSheetId = $relationshipNode->getAttribute('Id');
 
         $workbookXMLElement = $this->getWorkbookXMLAsXMLElement();
-            $sheetNodes = $workbookXMLElement->xpath('//ns:sheet[@r:id="' . $sheetId . '"]');
+        $sheetNodes = $workbookXMLElement->xpath('//ns:sheet[@r:id="' . $relationshipSheetId . '"]');
-
-            if (count($sheetNodes) === 1) {
         $sheetNode = $sheetNodes[0];
+
         $escapedSheetName = $sheetNode->getAttribute('name');
+        $sheetIdOneBased = $sheetNode->getAttribute('sheetId');
+        $sheetIndexZeroBased = $sheetIdOneBased - 1;
 
         /** @noinspection PhpUnnecessaryFullyQualifiedNameInspection */
         $escaper = new \Box\Spout\Common\Escaper\XLSX();
         $sheetName = $escaper->unescape($escapedSheetName);
-            }
-        }
 
         return new Sheet($this->filePath, $sheetDataXMLFilePath, $this->sharedStringsHelper, $sheetIndexZeroBased, $sheetName);
     }
 
-    /**
-     * Returns the default name of the sheet whose data is located
-     * at the given path.
-     *
-     * @param string $sheetDataXMLFilePath Path of the sheet data XML file
-     * @return string The default sheet name
-     */
-    protected function getDefaultSheetName($sheetDataXMLFilePath)
-    {
-        return $this->globalFunctionsHelper->basename($sheetDataXMLFilePath, self::XML_EXTENSION);
-    }
-
     /**
      * Returns a representation of the workbook.xml.rels file, ready to be parsed.
      * The returned value is cached.

src/Spout/Reader/XLSX/Helper/StyleHelper.php

@@ -148,7 +148,8 @@ class StyleHelper
 
         // Default style (0) does not format numeric values as timestamps. Only custom styles do.
         // Also if the style ID does not exist in the styles.xml file, format as numeric value.
-        if ($styleId === self::DEFAULT_STYLE_ID || !array_key_exists($styleId, $stylesAttributes)) {
+        // Using isset here because it is way faster than array_key_exists...
+        if ($styleId === self::DEFAULT_STYLE_ID || !isset($stylesAttributes[$styleId])) {
             return false;
         }
 
@@ -193,7 +194,8 @@ class StyleHelper
     {
         $customNumberFormats = $this->getCustomNumberFormats();
 
-        if (!array_key_exists($numFmtId, $customNumberFormats)) {
+        // Using isset here because it is way faster than array_key_exists...
+        if (!isset($customNumberFormats[$numFmtId])) {
             return false;
         }
 

src/Spout/Reader/XLSX/Reader.php

@@ -37,6 +37,16 @@ class Reader extends AbstractReader
         return $this;
     }
 
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    protected function doesSupportStreamWrapper()
+    {
+        return false;
+    }
+
     /**
      * Opens the file at the given file path to make it ready to be read.
      * It also parses the sharedStrings.xml file to get all the shared strings available in memory

src/Spout/Reader/XLSX/Sheet.php

@@ -15,7 +15,7 @@ class Sheet implements SheetInterface
     /** @var \Box\Spout\Reader\XLSX\RowIterator To iterate over sheet's rows */
     protected $rowIterator;
 
-    /** @var int Index of the sheet, based on order of creation (zero-based) */
+    /** @var int Index of the sheet, based on order in the workbook (zero-based) */
     protected $index;
 
     /** @var string Name of the sheet */
@@ -25,7 +25,7 @@ class Sheet implements SheetInterface
      * @param string $filePath Path of the XLSX file being read
      * @param string $sheetDataXMLFilePath Path of the sheet data XML file as in [Content_Types].xml
      * @param Helper\SharedStringsHelper Helper to work with shared strings
-     * @param int $sheetIndex Index of the sheet, based on order of creation (zero-based)
+     * @param int $sheetIndex Index of the sheet, based on order in the workbook (zero-based)
      * @param string $sheetName Name of the sheet
      */
     public function __construct($filePath, $sheetDataXMLFilePath, $sharedStringsHelper, $sheetIndex, $sheetName)
@@ -46,7 +46,7 @@ class Sheet implements SheetInterface
 
     /**
      * @api
-     * @return int Index of the sheet, based on order of creation (zero-based)
+     * @return int Index of the sheet, based on order in the workbook (zero-based)
      */
     public function getIndex()
     {

src/Spout/Reader/XLSX/SheetIterator.php

@@ -67,7 +67,8 @@ class SheetIterator implements IteratorInterface
      */
     public function next()
     {
-        if (array_key_exists($this->currentSheetIndex, $this->sheets)) {
+        // Using isset here because it is way faster than array_key_exists...
+        if (isset($this->sheets[$this->currentSheetIndex])) {
             $currentSheet = $this->sheets[$this->currentSheetIndex];
             $currentSheet->getRowIterator()->end();
 

src/Spout/Writer/AbstractWriter.php

@@ -319,6 +319,11 @@ abstract class AbstractWriter implements WriterInterface
     public function close()
     {
         $this->closeWriter();
+
+        if (is_resource($this->filePointer)) {
+            $this->globalFunctionsHelper->fclose($this->filePointer);
+        }
+
         $this->isWriterOpened = false;
     }
 }

src/Spout/Writer/CSV/Writer.php

@@ -96,10 +96,6 @@ class Writer extends AbstractWriter
      */
     protected function closeWriter()
     {
-        if ($this->filePointer) {
-            $this->globalFunctionsHelper->fclose($this->filePointer);
-        }
-
         $this->lastWrittenRowIndex = 0;
     }
 }

src/Spout/Writer/Common/Helper/AbstractStyleHelper.php

@@ -56,7 +56,9 @@ abstract class AbstractStyleHelper
     protected function hasStyleAlreadyBeenRegistered($style)
     {
         $serializedStyle = $style->serialize();
-        return array_key_exists($serializedStyle, $this->serializedStyleToStyleIdMappingTable);
+
+        // Using isset here because it is way faster than array_key_exists...
+        return isset($this->serializedStyleToStyleIdMappingTable[$serializedStyle]);
     }
 
     /**

src/Spout/Writer/Common/Helper/CellHelper.php

@@ -10,6 +10,9 @@ namespace Box\Spout\Writer\Common\Helper;
  */
 class CellHelper
 {
+    /** @var array Cache containing the mapping column index => cell index */
+    private static $columnIndexToCellIndexCache = [];
+
     /**
      * Returns the cell index (base 26) associated to the base 10 column index.
      * Excel uses A to Z letters for column indexing, where A is the 1st column,
@@ -21,6 +24,10 @@ class CellHelper
      */
     public static function getCellIndexFromColumnIndex($columnIndex)
     {
+        $originalColumnIndex = $columnIndex;
+
+        // Using isset here because it is way faster than array_key_exists...
+        if (!isset(self::$columnIndexToCellIndexCache[$originalColumnIndex])) {
             $cellIndex = '';
             $capitalAAsciiValue = ord('A');
 
@@ -30,9 +37,13 @@ class CellHelper
 
                 // substracting 1 because it's zero-based
                 $columnIndex = intval($columnIndex / 26) - 1;
+
             } while ($columnIndex >= 0);
 
-        return $cellIndex;
+            self::$columnIndexToCellIndexCache[$originalColumnIndex] = $cellIndex;
+        }
+
+        return self::$columnIndexToCellIndexCache[$originalColumnIndex];
     }
 
     /**

src/Spout/Writer/Common/Helper/ZipHelper.php

@@ -12,52 +12,142 @@ class ZipHelper
 {
     const ZIP_EXTENSION = '.zip';
 
+    /** Controls what to do when trying to add an existing file */
+    const EXISTING_FILES_SKIP = 'skip';
+    const EXISTING_FILES_OVERWRITE = 'overwrite';
+
+    /** @var string Path of the folder where the zip file will be created */
+    protected $tmpFolderPath;
+
+    /** @var \ZipArchive The ZipArchive instance */
+    protected $zip;
+
     /**
-     * Zips the root folder and streams the contents of the zip into the given stream
+     * @param string $tmpFolderPath Path of the temp folder where the zip file will be created
-     *
-     * @param string $folderPath Path to the folder to be zipped
-     * @param resource $streamPointer Pointer to the stream to copy the zip
-     * @return void
      */
-    public function zipFolderAndCopyToStream($folderPath, $streamPointer)
+    public function __construct($tmpFolderPath)
     {
-        $zipFilePath = $this->getZipFilePath($folderPath);
+        $this->tmpFolderPath = $tmpFolderPath;
-        $this->zipFolder($folderPath, $zipFilePath);
+    }
-        $this->copyZipToStream($zipFilePath, $streamPointer);
+
+    /**
+     * Returns the already created ZipArchive instance or
+     * creates one if none exists.
+     *
+     * @return \ZipArchive
+     */
+    protected function createOrGetZip()
+    {
+        if (!isset($this->zip)) {
+            $this->zip = new \ZipArchive();
+            $zipFilePath = $this->getZipFilePath();
+
+            $this->zip->open($zipFilePath, \ZipArchive::CREATE|\ZipArchive::OVERWRITE);
+        }
+
+        return $this->zip;
     }
 
     /**
-     * @param string $folderPathToZip Path to the folder to be zipped
      * @return string Path where the zip file of the given folder will be created
      */
-    public function getZipFilePath($folderPathToZip)
+    public function getZipFilePath()
     {
-        return $folderPathToZip . self::ZIP_EXTENSION;
+        return $this->tmpFolderPath . self::ZIP_EXTENSION;
     }
 
     /**
-     * Zips the given folder
+     * Adds the given file, located under the given root folder to the archive.
+     * The file will be compressed.
      *
-     * @param string $folderPath Path of the folder to be zipped
+     * Example of use:
-     * @param string $destinationPath Path where the zip file will be created
+     *   addFileToArchive('/tmp/xlsx/foo', 'bar/baz.xml');
+     *   => will add the file located at '/tmp/xlsx/foo/bar/baz.xml' in the archive, but only as 'bar/baz.xml'
+     *
+     * @param string $rootFolderPath Path of the root folder that will be ignored in the archive tree.
+     * @param string $localFilePath Path of the file to be added, under the root folder
+     * @param string|void $existingFileMode Controls what to do when trying to add an existing file
      * @return void
      */
-    public function zipFolder($folderPath, $destinationPath)
+    public function addFileToArchive($rootFolderPath, $localFilePath, $existingFileMode = self::EXISTING_FILES_OVERWRITE)
     {
-        $zip = new \ZipArchive();
+        $this->addFileToArchiveWithCompressionMethod(
-        if ($zip->open($destinationPath, \ZipArchive::CREATE)) {
+            $rootFolderPath,
-            $this->addFolderToZip($zip, $folderPath);
+            $localFilePath,
-            $zip->close();
+            $existingFileMode,
+            \ZipArchive::CM_DEFAULT
+        );
+    }
+
+    /**
+     * Adds the given file, located under the given root folder to the archive.
+     * The file will NOT be compressed.
+     *
+     * Example of use:
+     *   addUncompressedFileToArchive('/tmp/xlsx/foo', 'bar/baz.xml');
+     *   => will add the file located at '/tmp/xlsx/foo/bar/baz.xml' in the archive, but only as 'bar/baz.xml'
+     *
+     * @param string $rootFolderPath Path of the root folder that will be ignored in the archive tree.
+     * @param string $localFilePath Path of the file to be added, under the root folder
+     * @param string|void $existingFileMode Controls what to do when trying to add an existing file
+     * @return void
+     */
+    public function addUncompressedFileToArchive($rootFolderPath, $localFilePath, $existingFileMode = self::EXISTING_FILES_OVERWRITE)
+    {
+        $this->addFileToArchiveWithCompressionMethod(
+            $rootFolderPath,
+            $localFilePath,
+            $existingFileMode,
+            \ZipArchive::CM_STORE
+        );
+    }
+
+    /**
+     * Adds the given file, located under the given root folder to the archive.
+     * The file will NOT be compressed.
+     *
+     * Example of use:
+     *   addUncompressedFileToArchive('/tmp/xlsx/foo', 'bar/baz.xml');
+     *   => will add the file located at '/tmp/xlsx/foo/bar/baz.xml' in the archive, but only as 'bar/baz.xml'
+     *
+     * @param string $rootFolderPath Path of the root folder that will be ignored in the archive tree.
+     * @param string $localFilePath Path of the file to be added, under the root folder
+     * @param string $existingFileMode Controls what to do when trying to add an existing file
+     * @param int $compressionMethod The compression method
+     * @return void
+     */
+    protected function addFileToArchiveWithCompressionMethod($rootFolderPath, $localFilePath, $existingFileMode, $compressionMethod)
+    {
+        $zip = $this->createOrGetZip();
+
+        if (!$this->shouldSkipFile($zip, $localFilePath, $existingFileMode)) {
+            $normalizedFullFilePath = $this->getNormalizedRealPath($rootFolderPath . '/' . $localFilePath);
+            $zip->addFile($normalizedFullFilePath, $localFilePath);
+
+            if (self::canChooseCompressionMethod()) {
+                $zip->setCompressionName($localFilePath, $compressionMethod);
+            }
         }
     }
 
     /**
-     * @param \ZipArchive $zip
+     * @return bool Whether it is possible to choose the desired compression method to be used
-     * @param string $folderPath Path of the folder to add to the zip
+     */
+    public static function canChooseCompressionMethod()
+    {
+        // setCompressionName() is a PHP7+ method...
+        return (method_exists(new \ZipArchive(), 'setCompressionName'));
+    }
+
+    /**
+     * @param string $folderPath Path to the folder to be zipped
+     * @param string|void $existingFileMode Controls what to do when trying to add an existing file
      * @return void
      */
-    protected function addFolderToZip($zip, $folderPath)
+    public function addFolderToArchive($folderPath, $existingFileMode = self::EXISTING_FILES_OVERWRITE)
     {
+        $zip = $this->createOrGetZip();
+
         $folderRealPath = $this->getNormalizedRealPath($folderPath) . '/';
         $itemIterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($folderPath, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::SELF_FIRST);
 
@@ -65,14 +155,26 @@ class ZipHelper
             $itemRealPath = $this->getNormalizedRealPath($itemInfo->getPathname());
             $itemLocalPath = str_replace($folderRealPath, '', $itemRealPath);
 
-            if ($itemInfo->isFile()) {
+            if ($itemInfo->isFile() && !$this->shouldSkipFile($zip, $itemLocalPath, $existingFileMode)) {
                 $zip->addFile($itemRealPath, $itemLocalPath);
-            } else if ($itemInfo->isDir()) {
-                $zip->addEmptyDir($itemLocalPath);
             }
         }
     }
 
+    /**
+     * @param \ZipArchive $zip
+     * @param string $itemLocalPath
+     * @param string $existingFileMode
+     * @return bool Whether the file should be added to the archive or skipped
+     */
+    protected function shouldSkipFile($zip, $itemLocalPath, $existingFileMode)
+    {
+        // Skip files if:
+        //   - EXISTING_FILES_SKIP mode chosen
+        //   - File already exists in the archive
+        return ($existingFileMode === self::EXISTING_FILES_SKIP && $zip->locateName($itemLocalPath) !== false);
+    }
+
     /**
      * Returns canonicalized absolute pathname, containing only forward slashes.
      *
@@ -85,16 +187,30 @@ class ZipHelper
         return str_replace(DIRECTORY_SEPARATOR, '/', $realPath);
     }
 
+    /**
+     * Closes the archive and copies it into the given stream
+     *
+     * @param resource $streamPointer Pointer to the stream to copy the zip
+     * @return void
+     */
+    public function closeArchiveAndCopyToStream($streamPointer)
+    {
+        $zip = $this->createOrGetZip();
+        $zip->close();
+        unset($this->zip);
+
+        $this->copyZipToStream($streamPointer);
+    }
+
     /**
      * Streams the contents of the zip file into the given stream
      *
-     * @param string $zipFilePath Path to the zip file
      * @param resource $pointer Pointer to the stream to copy the zip
      * @return void
      */
-    protected function copyZipToStream($zipFilePath, $pointer)
+    protected function copyZipToStream($pointer)
     {
-        $zipFilePointer = fopen($zipFilePath, 'r');
+        $zipFilePointer = fopen($this->getZipFilePath(), 'r');
         stream_copy_to_stream($zipFilePointer, $pointer);
         fclose($zipFilePointer);
     }

src/Spout/Writer/Common/Sheet.php

@@ -24,7 +24,7 @@ class Sheet
     /** @var array Associative array [SHEET_INDEX] => [SHEET_NAME] keeping track of sheets' name to enforce uniqueness */
     protected static $SHEETS_NAME_USED = [];
 
-    /** @var int Index of the sheet, based on order of creation (zero-based) */
+    /** @var int Index of the sheet, based on order in the workbook (zero-based) */
     protected $index;
 
     /** @var string Name of the sheet */
@@ -34,7 +34,7 @@ class Sheet
     protected $stringHelper;
 
     /**
-     * @param int $sheetIndex Index of the sheet, based on order of creation (zero-based)
+     * @param int $sheetIndex Index of the sheet, based on order in the workbook (zero-based)
      */
     public function __construct($sheetIndex)
     {
@@ -45,7 +45,7 @@ class Sheet
 
     /**
      * @api
-     * @return int Index of the sheet, based on order of creation (zero-based)
+     * @return int Index of the sheet, based on order in the workbook (zero-based)
      */
     public function getIndex()
     {

src/Spout/Writer/ODS/Helper/FileSystemHelper.php

@@ -103,14 +103,12 @@ class FileSystemHelper extends \Box\Spout\Common\Helper\FileSystemHelper
     protected function createManifestFile()
     {
         $manifestXmlFileContents = <<<EOD
-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<?xml version="1.0" encoding="UTF-8"?>
-<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0">
+<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">
     <manifest:file-entry manifest:full-path="/" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>
     <manifest:file-entry manifest:full-path="styles.xml" manifest:media-type="text/xml"/>
     <manifest:file-entry manifest:full-path="content.xml" manifest:media-type="text/xml"/>
     <manifest:file-entry manifest:full-path="meta.xml" manifest:media-type="text/xml"/>
-    <manifest:file-entry manifest:full-path="mimetype" manifest:media-type="text/plain"/>
-    <manifest:file-entry manifest:full-path="META-INF/manifest.xml" manifest:media-type="text/xml"/>
 </manifest:manifest>
 EOD;
 
@@ -265,10 +263,17 @@ EOD;
      */
     public function zipRootFolderAndCopyToStream($streamPointer)
     {
-        $zipHelper = new ZipHelper();
+        $zipHelper = new ZipHelper($this->rootFolder);
-        $zipHelper->zipFolderAndCopyToStream($this->rootFolder, $streamPointer);
+
+        // In order to have the file's mime type detected properly, files need to be added
+        // to the zip file in a particular order.
+        // @see http://www.jejik.com/articles/2010/03/how_to_correctly_create_odf_documents_using_zip/
+        $zipHelper->addUncompressedFileToArchive($this->rootFolder, self::MIMETYPE_FILE_NAME);
+
+        $zipHelper->addFolderToArchive($this->rootFolder, ZipHelper::EXISTING_FILES_SKIP);
+        $zipHelper->closeArchiveAndCopyToStream($streamPointer);
 
         // once the zip is copied, remove it
-        $this->deleteFile($zipHelper->getZipFilePath($this->rootFolder));
+        $this->deleteFile($zipHelper->getZipFilePath());
     }
 }

src/Spout/Writer/ODS/Internal/Worksheet.php

@@ -146,7 +146,8 @@ class Worksheet implements WorksheetInterface
         for ($i = 0; $i < $cellsCount; $i++) {
             $currentCellValue = $dataRow[$currentCellIndex];
 
-            if (!array_key_exists($nextCellIndex, $dataRow) || $currentCellValue !== $dataRow[$nextCellIndex]) {
+            // Using isset here because it is way faster than array_key_exists...
+            if (!isset($dataRow[$nextCellIndex]) || $currentCellValue !== $dataRow[$nextCellIndex]) {
                 $numTimesValueRepeated = ($nextCellIndex - $currentCellIndex);
                 $data .= $this->getCellContent($currentCellValue, $styleIndex, $numTimesValueRepeated);
 

src/Spout/Writer/Style/Style.php

@@ -293,7 +293,7 @@ class Style
         if (!$this->hasSetFontSize && $baseStyle->getFontSize() !== self::DEFAULT_FONT_SIZE) {
             $mergedStyle->setFontSize($baseStyle->getFontSize());
         }
-        if (!$this->hasSetFontSize && $baseStyle->getFontColor() !== self::DEFAULT_FONT_COLOR) {
+        if (!$this->hasSetFontColor && $baseStyle->getFontColor() !== self::DEFAULT_FONT_COLOR) {
             $mergedStyle->setFontColor($baseStyle->getFontColor());
         }
         if (!$this->hasSetFontName && $baseStyle->getFontName() !== self::DEFAULT_FONT_NAME) {

src/Spout/Writer/XLSX/Helper/FileSystemHelper.php

@@ -353,10 +353,19 @@ EOD;
      */
     public function zipRootFolderAndCopyToStream($streamPointer)
     {
-        $zipHelper = new ZipHelper();
+        $zipHelper = new ZipHelper($this->rootFolder);
-        $zipHelper->zipFolderAndCopyToStream($this->rootFolder, $streamPointer);
+
+        // In order to have the file's mime type detected properly, files need to be added
+        // to the zip file in a particular order.
+        // "[Content_Types].xml" then at least 2 files located in "xl" folder should be zipped first.
+        $zipHelper->addFileToArchive($this->rootFolder, self::CONTENT_TYPES_XML_FILE_NAME);
+        $zipHelper->addFileToArchive($this->rootFolder, self::XL_FOLDER_NAME . '/' . self::WORKBOOK_XML_FILE_NAME);
+        $zipHelper->addFileToArchive($this->rootFolder, self::XL_FOLDER_NAME . '/' . self::STYLES_XML_FILE_NAME);
+
+        $zipHelper->addFolderToArchive($this->rootFolder, ZipHelper::EXISTING_FILES_SKIP);
+        $zipHelper->closeArchiveAndCopyToStream($streamPointer);
 
         // once the zip is copied, remove it
-        $this->deleteFile($zipHelper->getZipFilePath($this->rootFolder));
+        $this->deleteFile($zipHelper->getZipFilePath());
     }
 }

src/Spout/Writer/XLSX/Internal/Worksheet.php

@@ -131,36 +131,38 @@ EOD;
         $rowIndex = $this->lastWrittenRowIndex + 1;
         $numCells = count($dataRow);
 
-        $data = '<row r="' . $rowIndex . '" spans="1:' . $numCells . '">';
+        $rowXML = '<row r="' . $rowIndex . '" spans="1:' . $numCells . '">';
 
         foreach($dataRow as $cellValue) {
             $columnIndex = CellHelper::getCellIndexFromColumnIndex($cellNumber);
-            $data .= '<c r="' . $columnIndex . $rowIndex . '"';
+            $cellXML = '<c r="' . $columnIndex . $rowIndex . '"';
-            $data .= ' s="' . $style->getId() . '"';
+            $cellXML .= ' s="' . $style->getId() . '"';
 
             if (CellHelper::isNonEmptyString($cellValue)) {
                 if ($this->shouldUseInlineStrings) {
-                    $data .= ' t="inlineStr"><is><t>' . $this->stringsEscaper->escape($cellValue) . '</t></is></c>';
+                    $cellXML .= ' t="inlineStr"><is><t>' . $this->stringsEscaper->escape($cellValue) . '</t></is></c>';
                 } else {
                     $sharedStringId = $this->sharedStringsHelper->writeString($cellValue);
-                    $data .= ' t="s"><v>' . $sharedStringId . '</v></c>';
+                    $cellXML .= ' t="s"><v>' . $sharedStringId . '</v></c>';
                 }
             } else if (CellHelper::isBoolean($cellValue)) {
-                $data .= ' t="b"><v>' . $cellValue . '</v></c>';
+                    $cellXML .= ' t="b"><v>' . intval($cellValue) . '</v></c>';
             } else if (CellHelper::isNumeric($cellValue)) {
-                $data .= '><v>' . $cellValue . '</v></c>';
+                $cellXML .= '><v>' . $cellValue . '</v></c>';
             } else if (empty($cellValue)) {
-                $data .= '/>';
+                // don't write empty cells (not appending to $cellXML is the right behavior!)
+                $cellXML = '';
             } else {
                 throw new InvalidArgumentException('Trying to add a value with an unsupported type: ' . gettype($cellValue));
             }
 
+            $rowXML .= $cellXML;
             $cellNumber++;
         }
 
-        $data .= '</row>';
+        $rowXML .= '</row>';
 
-        $wasWriteSuccessful = fwrite($this->sheetFilePointer, $data);
+        $wasWriteSuccessful = fwrite($this->sheetFilePointer, $rowXML);
         if ($wasWriteSuccessful === false) {
             throw new IOException("Unable to write data in {$this->worksheetFilePath}");
         }

tests/Spout/Reader/CSV/ReaderTest.php

@@ -204,6 +204,15 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('This is, a comma', $allRows[0][0]);
     }
 
+    /**
+     * @return void
+     */
+    public function testReadShouldNotTruncateLineBreak()
+    {
+        $allRows = $this->getAllRowsForFile('csv_with_line_breaks.csv', ',');
+        $this->assertEquals("This is,\na comma", $allRows[0][0]);
+    }
+
     /**
      * @return array
      */
@@ -343,6 +352,38 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows);
     }
 
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldInludeRowsWithZerosOnly()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_zeros_in_row.csv');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['1', '2', '3'],
+            ['0', '0', '0']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be only 3 rows, because zeros (0) are valid values');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldCreateOutputEmptyCellPreserved()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_empty_cells.csv');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['0', '', ''],
+            ['1', '1', '']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be 3 rows, with equal length');
+    }
+
     /**
      * @param string $fileName
      * @param string|void $fieldDelimiter
@@ -377,4 +418,96 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
 
         return $allRows;
     }
+
+    /**
+     * @return array
+     */
+    public function dataProviderForTestReadCustomEOL()
+    {
+        return [
+            ['csv_with_CR_EOL.csv', "\r"],
+            ['csv_standard.csv', "\n"],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderForTestReadCustomEOL
+     *
+     * @param string $fileName
+     * @param string $customEOL
+     * @return void
+     */
+    public function testReadCustomEOLs($fileName, $customEOL)
+    {
+        $allRows = [];
+        $resourcePath = $this->getResourcePath($fileName);
+
+        /** @var \Box\Spout\Reader\CSV\Reader $reader */
+        $reader = ReaderFactory::create(Type::CSV);
+        $reader
+            ->setEndOfLineCharacter($customEOL)
+            ->open($resourcePath);
+
+        foreach ($reader->getSheetIterator() as $sheet) {
+            foreach ($sheet->getRowIterator() as $row) {
+                $allRows[] = $row;
+            }
+        }
+
+        $reader->close();
+
+        $expectedRows = [
+            ['csv--11', 'csv--12', 'csv--13'],
+            ['csv--21', 'csv--22', 'csv--23'],
+            ['csv--31', 'csv--32', 'csv--33'],
+        ];
+        $this->assertEquals($expectedRows, $allRows);
+    }
+
+    /**
+     * @return void
+     */
+    public function testReadCustomStreamWrapper()
+    {
+        $allRows = [];
+        $resourcePath = 'spout://csv_standard';
+
+        // register stream wrapper
+        stream_wrapper_register('spout', SpoutTestStream::CLASS_NAME);
+
+        /** @var \Box\Spout\Reader\CSV\Reader $reader */
+        $reader = ReaderFactory::create(Type::CSV);
+        $reader->open($resourcePath);
+
+        foreach ($reader->getSheetIterator() as $sheet) {
+            foreach ($sheet->getRowIterator() as $row) {
+                $allRows[] = $row;
+            }
+        }
+
+        $reader->close();
+
+        $expectedRows = [
+            ['csv--11', 'csv--12', 'csv--13'],
+            ['csv--21', 'csv--22', 'csv--23'],
+            ['csv--31', 'csv--32', 'csv--33'],
+        ];
+        $this->assertEquals($expectedRows, $allRows);
+
+        // cleanup
+        stream_wrapper_unregister('spout');
+    }
+
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithUnsupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\CSV\Reader $reader */
+        $reader = ReaderFactory::create(Type::CSV);
+        $reader->open('unsupported://foobar');
+    }
+
 }

tests/Spout/Reader/CSV/SpoutTestStream.php

@@ -0,0 +1,120 @@
+<?php
+
+namespace Box\Spout\Reader\CSV;
+
+/**
+ * Class SpoutTestStream
+ * Custom stream that reads CSV files located in the tests/resources/csv folder.
+ * For example: spout://foobar will point to tests/resources/csv/foobar.csv
+ *
+ * @package Box\Spout\Reader\CSV
+ */
+class SpoutTestStream
+{
+    const CLASS_NAME = __CLASS__;
+
+    const PATH_TO_CSV_RESOURCES = 'tests/resources/csv/';
+    const CSV_EXTENSION = '.csv';
+
+    /** @var int $position */
+    private $position;
+
+    /** @var resource $fileHandle */
+    private $fileHandle;
+
+    /**
+     * @param string $path
+     * @param int $flag
+     * @return array
+     */
+    public function url_stat($path, $flag)
+    {
+        $filePath = $this->getFilePathFromStreamPath($path);
+        return stat($filePath);
+    }
+
+    /**
+     * @param string $streamPath
+     * @return string
+     */
+    private function getFilePathFromStreamPath($streamPath)
+    {
+        $fileName = parse_url($streamPath, PHP_URL_HOST);
+        return self::PATH_TO_CSV_RESOURCES . $fileName . self::CSV_EXTENSION;
+    }
+
+    /**
+     * @param string $path
+     * @param string $mode
+     * @param int $options
+     * @param string $opened_path
+     * @return bool
+     */
+    public function stream_open($path, $mode, $options, &$opened_path)
+    {
+        $this->position = 0;
+
+        // the path is like "spout://csv_name" so the actual file name correspond the name of the host.
+        $filePath = $this->getFilePathFromStreamPath($path);
+        $this->fileHandle = fopen($filePath, $mode);
+
+        return true;
+    }
+
+    /**
+     * @param int $numBytes
+     * @return string
+     */
+    public function stream_read($numBytes)
+    {
+        $this->position += $numBytes;
+        return fread($this->fileHandle, $numBytes);
+    }
+
+    /**
+     * @return int
+     */
+    public function stream_tell()
+    {
+        return $this->position;
+    }
+
+    /**
+     * @param int $offset
+     * @param int|void $whence
+     * @return bool
+     */
+    public function stream_seek($offset, $whence = SEEK_SET)
+    {
+        $result = fseek($this->fileHandle, $offset, $whence);
+        if ($result === -1) {
+            return false;
+        }
+
+        if ($whence === SEEK_SET) {
+            $this->position = $offset;
+        } else if ($whence === SEEK_CUR) {
+            $this->position += $offset;
+        } else {
+            // not implemented
+        }
+
+        return true;
+    }
+
+    /**
+     * @return bool
+     */
+    public function stream_close()
+    {
+        return fclose($this->fileHandle);
+    }
+
+    /**
+     * @return bool
+     */
+    public function stream_eof()
+    {
+        return feof($this->fileHandle);
+    }
+}

tests/Spout/Reader/ODS/ReaderTest.php

@@ -363,6 +363,62 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows);
     }
 
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithUnsupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\ODS\Reader $reader */
+        $reader = ReaderFactory::create(Type::ODS);
+        $reader->open('unsupported://foobar');
+    }
+
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithSupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\ODS\Reader $reader */
+        $reader = ReaderFactory::create(Type::ODS);
+        $reader->open('php://memory');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldInludeRowsWithZerosOnly()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_zeros_in_row.ods');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['1', '2', '3'],
+            ['0', '0', '0']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be only 3 rows, because zeros (0) are valid values');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldCreateOutputEmptyCellPreserved()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_empty_cells.ods');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['0', '', ''],
+            ['1', '1', '']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be 3 rows, with equal length');
+    }
+
     /**
      * @param string $fileName
      * @return array All the read rows the given file

tests/Spout/Reader/XLSX/Helper/CellValueFormatterTest.php

@@ -0,0 +1,126 @@
+<?php
+
+namespace Box\Spout\Reader\XLSX\Helper;
+
+/**
+ * Class CellValueFormatterTest
+ *
+ * @package Box\Spout\Reader\XLSX\Helper
+ */
+class CellValueFormatterTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @return array
+     */
+    public function dataProviderForTestExcelDate()
+    {
+        return [
+            [CellValueFormatter::CELL_TYPE_NUMERIC, 42429, '2016-02-29 00:00:00'],
+            [CellValueFormatter::CELL_TYPE_NUMERIC, '146098', '2299-12-31 00:00:00'],
+            [CellValueFormatter::CELL_TYPE_NUMERIC, -700, null],
+            [CellValueFormatter::CELL_TYPE_NUMERIC, 0, null],
+            [CellValueFormatter::CELL_TYPE_NUMERIC, 0.5, null],
+            [CellValueFormatter::CELL_TYPE_NUMERIC, 1, '1900-01-01 00:00:00'],
+            [CellValueFormatter::CELL_TYPE_NUMERIC, 59.999988425926, '1900-02-28 23:59:59'],
+            [CellValueFormatter::CELL_TYPE_NUMERIC, 60.458333333333, '1900-02-28 11:00:00'],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderForTestExcelDate
+     *
+     * @param string $cellType
+     * @param int|float|string $nodeValue
+     * @param string|null $expectedDateAsString
+     * @return void
+     */
+    public function testExcelDate($cellType, $nodeValue, $expectedDateAsString)
+    {
+        $nodeListMock = $this->getMockBuilder('DOMNodeList')->disableOriginalConstructor()->getMock();
+
+        $nodeListMock
+            ->expects($this->atLeastOnce())
+            ->method('item')
+            ->with(0)
+            ->will($this->returnValue((object)['nodeValue' => $nodeValue]));
+
+        $nodeMock = $this->getMockBuilder('DOMElement')->disableOriginalConstructor()->getMock();
+
+        $nodeMock
+            ->expects($this->atLeastOnce())
+            ->method('getAttribute')
+            ->will($this->returnValueMap([
+                [CellValueFormatter::XML_ATTRIBUTE_TYPE, $cellType],
+                [CellValueFormatter::XML_ATTRIBUTE_STYLE_ID, 123],
+            ]));
+
+        $nodeMock
+            ->expects($this->atLeastOnce())
+            ->method('getElementsByTagName')
+            ->with(CellValueFormatter::XML_NODE_VALUE)
+            ->will($this->returnValue($nodeListMock));
+
+        $styleHelperMock = $this->getMockBuilder('Box\Spout\Reader\XLSX\Helper\StyleHelper')->disableOriginalConstructor()->getMock();
+
+        $styleHelperMock
+            ->expects($this->once())
+            ->method('shouldFormatNumericValueAsDate')
+            ->with(123)
+            ->will($this->returnValue(true));
+
+        $formatter = new CellValueFormatter(null, $styleHelperMock);
+        $result = $formatter->extractAndFormatNodeValue($nodeMock);
+
+        if ($expectedDateAsString === null) {
+            $this->assertNull($result);
+        } else {
+            $this->assertInstanceOf('DateTime', $result);
+            $this->assertSame($expectedDateAsString, $result->format('Y-m-d H:i:s'));
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function dataProviderForTestFormatNumericCellValueWithNumbers()
+    {
+        return [
+            [42, 42, 'integer'],
+            [42.5, 42.5, 'double'],
+            [-42, -42, 'integer'],
+            [-42.5, -42.5, 'double'],
+            ['42', 42, 'integer'],
+            ['42.5', 42.5, 'double'],
+            [865640023012945, 865640023012945, 'integer'],
+            ['865640023012945', 865640023012945, 'integer'],
+            [865640023012945.5, 865640023012945.5, 'double'],
+            ['865640023012945.5', 865640023012945.5, 'double'],
+            [PHP_INT_MAX, PHP_INT_MAX, 'integer'],
+            [~PHP_INT_MAX + 1, ~PHP_INT_MAX + 1, 'integer'], // ~PHP_INT_MAX === PHP_INT_MIN, PHP_INT_MIN being PHP7+
+            [PHP_INT_MAX + 1, PHP_INT_MAX + 1, 'double'],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderForTestFormatNumericCellValueWithNumbers
+     *
+     * @param int|float|string $value
+     * @param int|float $expectedFormattedValue
+     * @param string $expectedType
+     * @return void
+     */
+    public function testFormatNumericCellValueWithNumbers($value, $expectedFormattedValue, $expectedType)
+    {
+        $styleHelperMock = $this->getMockBuilder('Box\Spout\Reader\XLSX\Helper\StyleHelper')->disableOriginalConstructor()->getMock();
+        $styleHelperMock
+            ->expects($this->once())
+            ->method('shouldFormatNumericValueAsDate')
+            ->will($this->returnValue(false));
+
+        $formatter = new CellValueFormatter(null, $styleHelperMock);
+        $formattedValue = \ReflectionHelper::callMethodOnObject($formatter, 'formatNumericCellValue', $value, 0);
+
+        $this->assertEquals($expectedFormattedValue, $formattedValue);
+        $this->assertEquals($expectedType, gettype($formattedValue));
+    }
+}

tests/Spout/Reader/XLSX/ReaderTest.php

@@ -73,6 +73,28 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         }
     }
 
+    /**
+     * @return void
+     */
+    public function testReadShouldSupportSheetsDefinitionInRandomOrder()
+    {
+        $allRows = $this->getAllRowsForFile('two_sheets_with_sheets_definition_in_reverse_order.xlsx');
+
+        $expectedRows = [
+            ['s1 - A1', 's1 - B1', 's1 - C1', 's1 - D1', 's1 - E1'],
+            ['s1 - A2', 's1 - B2', 's1 - C2', 's1 - D2', 's1 - E2'],
+            ['s1 - A3', 's1 - B3', 's1 - C3', 's1 - D3', 's1 - E3'],
+            ['s1 - A4', 's1 - B4', 's1 - C4', 's1 - D4', 's1 - E4'],
+            ['s1 - A5', 's1 - B5', 's1 - C5', 's1 - D5', 's1 - E5'],
+            ['s2 - A1', 's2 - B1', 's2 - C1', 's2 - D1', 's2 - E1'],
+            ['s2 - A2', 's2 - B2', 's2 - C2', 's2 - D2', 's2 - E2'],
+            ['s2 - A3', 's2 - B3', 's2 - C3', 's2 - D3', 's2 - E3'],
+            ['s2 - A4', 's2 - B4', 's2 - C4', 's2 - D4', 's2 - E4'],
+            ['s2 - A5', 's2 - B5', 's2 - C5', 's2 - D5', 's2 - E5'],
+        ];
+        $this->assertEquals($expectedRows, $allRows);
+    }
+
     /**
      * @return void
      */
@@ -382,6 +404,63 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows);
     }
 
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithUnsupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\XLSX\Reader $reader */
+        $reader = ReaderFactory::create(Type::XLSX);
+        $reader->open('unsupported://foobar');
+    }
+
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithSupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\XLSX\Reader $reader */
+        $reader = ReaderFactory::create(Type::XLSX);
+        $reader->open('php://memory');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldInludeRowsWithZerosOnly()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_zeros_in_row.xlsx');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['1', '2', '3'],
+            ['0', '0', '0']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be only 3 rows, because zeros (0) are valid values');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldCreateOutputEmptyCellPreserved()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_empty_cells.xlsx');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['0', '', ''],
+            ['1', '1', '']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be 3 rows, with equal length');
+    }
+
+
     /**
      * @param string $fileName
      * @return array All the read rows the given file

tests/Spout/Writer/ODS/WriterTest.php

@@ -5,6 +5,7 @@ namespace Box\Spout\Writer\ODS;
 use Box\Spout\Common\Type;
 use Box\Spout\Reader\Wrapper\XMLReader;
 use Box\Spout\TestUsingResource;
+use Box\Spout\Writer\Common\Helper\ZipHelper;
 use Box\Spout\Writer\WriterFactory;
 
 /**
@@ -368,6 +369,30 @@ class WriterTest extends \PHPUnit_Framework_TestCase
         $this->assertValueWasWrittenToSheet($fileName, 1, 'a dream');
     }
 
+    /**
+     * @return void
+     */
+    public function testGeneratedFileShouldHaveTheCorrectMimeType()
+    {
+        // Only PHP7+ gives the correct mime type since it requires adding
+        // uncompressed files to the final archive (which support was added in PHP7)
+        if (!ZipHelper::canChooseCompressionMethod()) {
+            $this->markTestSkipped(
+                'The PHP version used does not support setting the compression method of archived files,
+                resulting in the mime type to be detected incorrectly.'
+            );
+        }
+
+        $fileName = 'test_mime_type.ods';
+        $resourcePath = $this->getGeneratedResourcePath($fileName);
+        $dataRow = ['foo'];
+
+        $this->writeToODSFile([$dataRow], $fileName);
+
+        $finfo = new \finfo(FILEINFO_MIME_TYPE);
+        $this->assertEquals('application/vnd.oasis.opendocument.spreadsheet', $finfo->file($resourcePath));
+    }
+
     /**
      * @param array $allRows
      * @param string $fileName

tests/Spout/Writer/XLSX/WriterTest.php

@@ -385,6 +385,21 @@ class WriterTest extends \PHPUnit_Framework_TestCase
         $this->assertInlineDataWasWrittenToSheet($fileName, 1, 'control's _x0015_ "character"');
     }
 
+    /**
+     * @return void
+     */
+    public function testGeneratedFileShouldHaveTheCorrectMimeType()
+    {
+        $fileName = 'test_mime_type.xlsx';
+        $resourcePath = $this->getGeneratedResourcePath($fileName);
+        $dataRows = [['foo']];
+
+        $this->writeToXLSXFile($dataRows, $fileName);
+
+        $finfo = new \finfo(FILEINFO_MIME_TYPE);
+        $this->assertEquals('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', $finfo->file($resourcePath));
+    }
+
     /**
      * @param array $allRows
      * @param string $fileName

tests/bootstrap.php

@@ -3,6 +3,7 @@ require_once(dirname(__DIR__) . '/vendor/autoload.php');
 
 require_once(dirname(__DIR__) . '/tests/Spout/TestUsingResource.php');
 require_once(dirname(__DIR__) . '/tests/Spout/ReflectionHelper.php');
+require_once(dirname(__DIR__) . '/tests/Spout/Reader/CSV/SpoutTestStream.php');
 
 // Make sure a timezone is set to be able to work with dates
 date_default_timezone_set('UTC');

tests/resources/csv/csv_with_CR_EOL.csv

@@ -0,0 +1 @@
+csv--11,csv--12,csv--13␍csv--21,csv--22,csv--23␍csv--31,csv--32,csv--33

tests/resources/csv/csv_with_line_breaks.csv

@@ -0,0 +1,2 @@
+"This is,
+a comma",csv--12

tests/resources/csv/sheet_with_empty_cells.csv

@@ -0,0 +1,3 @@
+"A","B","C"
+0,,
+1,1,

tests/resources/csv/sheet_with_zeros_in_row.csv

@@ -0,0 +1,3 @@
+"A","B","C"
+1,2,3
+0,0,0