Fix PHP 8.1 deprecations

src/Spout/Common/Helper/GlobalFunctionsHelper.php

@@ -82,7 +82,7 @@ class GlobalFunctionsHelper
      * @param int|null $length
      * @param string|null $delimiter
      * @param string|null $enclosure
-     * @return array
+     * @return array|false
      */
     public function fgetcsv($handle, $length = null, $delimiter = null, $enclosure = null)
     {

src/Spout/Reader/CSV/RowIterator.php

@@ -84,7 +84,7 @@ class RowIterator implements IteratorInterface
      *
      * @return void
      */
-    public function rewind()
+    public function rewind() : void
     {
         $this->rewindAndSkipBom();
 
@@ -114,7 +114,7 @@ class RowIterator implements IteratorInterface
      *
      * @return bool
      */
-    public function valid()
+    public function valid() : bool
     {
         return ($this->filePointer && !$this->hasReachedEndOfFile);
     }
@@ -126,7 +126,7 @@ class RowIterator implements IteratorInterface
      * @throws \Box\Spout\Common\Exception\EncodingConversionException If unable to convert data to UTF-8
      * @return void
      */
-    public function next()
+    public function next() : void
     {
         $this->hasReachedEndOfFile = $this->globalFunctionsHelper->feof($this->filePointer);
 
@@ -146,8 +146,8 @@ class RowIterator implements IteratorInterface
         } while ($this->shouldReadNextRow($rowData));
 
         if ($rowData !== false) {
-            // str_replace will replace NULL values by empty strings
-            $rowDataBufferAsArray = \str_replace(null, null, $rowData);
+            // array_map will replace NULL values by empty strings
+            $rowDataBufferAsArray = array_map(function ($value) { return (string) $value; }, $rowData);
             $this->rowBuffer = $this->entityFactory->createRowFromArray($rowDataBufferAsArray);
             $this->numReadRows++;
         } else {
@@ -224,7 +224,7 @@ class RowIterator implements IteratorInterface
      *
      * @return Row|null
      */
-    public function current()
+    public function current() : ?Row
     {
         return $this->rowBuffer;
     }
@@ -235,7 +235,7 @@ class RowIterator implements IteratorInterface
      *
      * @return int
      */
-    public function key()
+    public function key() : int
     {
         return $this->numReadRows;
     }
@@ -245,7 +245,7 @@ class RowIterator implements IteratorInterface
      *
      * @return void
      */
-    public function end()
+    public function end() : void
     {
         // do nothing
     }

src/Spout/Reader/CSV/SheetIterator.php

@@ -10,7 +10,7 @@ use Box\Spout\Reader\IteratorInterface;
  */
 class SheetIterator implements IteratorInterface
 {
-    /** @var \Box\Spout\Reader\CSV\Sheet The CSV unique "sheet" */
+    /** @var Sheet The CSV unique "sheet" */
     protected $sheet;
 
     /** @var bool Whether the unique "sheet" has already been read */
@@ -30,7 +30,7 @@ class SheetIterator implements IteratorInterface
      *
      * @return void
      */
-    public function rewind()
+    public function rewind() : void
     {
         $this->hasReadUniqueSheet = false;
     }
@@ -41,7 +41,7 @@ class SheetIterator implements IteratorInterface
      *
      * @return bool
      */
-    public function valid()
+    public function valid() : bool
     {
         return (!$this->hasReadUniqueSheet);
     }
@@ -52,7 +52,7 @@ class SheetIterator implements IteratorInterface
      *
      * @return void
      */
-    public function next()
+    public function next() : void
     {
         $this->hasReadUniqueSheet = true;
     }
@@ -61,9 +61,9 @@ class SheetIterator implements IteratorInterface
      * Return the current element
      * @see http://php.net/manual/en/iterator.current.php
      *
-     * @return \Box\Spout\Reader\CSV\Sheet
+     * @return Sheet
      */
-    public function current()
+    public function current() : Sheet
     {
         return $this->sheet;
     }
@@ -74,7 +74,7 @@ class SheetIterator implements IteratorInterface
      *
      * @return int
      */
-    public function key()
+    public function key() : int
     {
         return 1;
     }
@@ -84,7 +84,7 @@ class SheetIterator implements IteratorInterface
      *
      * @return void
      */
-    public function end()
+    public function end() : void
     {
         // do nothing
     }

src/Spout/Reader/ODS/RowIterator.php

@@ -118,7 +118,7 @@ class RowIterator implements IteratorInterface
      * @throws \Box\Spout\Reader\Exception\IteratorNotRewindableException If the iterator is rewound more than once
      * @return void
      */
-    public function rewind()
+    public function rewind() : void
     {
         // Because sheet and row data is located in the file, we can't rewind both the
         // sheet iterator and the row iterator, as XML file cannot be read backwards.
@@ -142,7 +142,7 @@ class RowIterator implements IteratorInterface
      *
      * @return bool
      */
-    public function valid()
+    public function valid() : bool
     {
         return (!$this->hasReachedEndOfFile);
     }
@@ -155,7 +155,7 @@ class RowIterator implements IteratorInterface
      * @throws \Box\Spout\Common\Exception\IOException If unable to read the sheet data XML
      * @return void
      */
-    public function next()
+    public function next() : void
     {
         if ($this->doesNeedDataForNextRowToBeProcessed()) {
             $this->readDataForNextRow();
@@ -356,7 +356,7 @@ class RowIterator implements IteratorInterface
      *
      * @return Row
      */
-    public function current()
+    public function current() : Row
     {
         return $this->rowBuffer;
     }
@@ -367,7 +367,7 @@ class RowIterator implements IteratorInterface
      *
      * @return int
      */
-    public function key()
+    public function key() : int
     {
         return $this->lastRowIndexProcessed;
     }
@@ -377,7 +377,7 @@ class RowIterator implements IteratorInterface
      *
      * @return void
      */
-    public function end()
+    public function end() : void
     {
         $this->xmlReader->close();
     }

src/Spout/Reader/XLSX/RowIterator.php

@@ -139,7 +139,7 @@ class RowIterator implements IteratorInterface
      * @throws \Box\Spout\Common\Exception\IOException If the sheet data XML cannot be read
      * @return void
      */
-    public function rewind()
+    public function rewind() : void
     {
         $this->xmlReader->close();
 
@@ -163,7 +163,7 @@ class RowIterator implements IteratorInterface
      *
      * @return bool
      */
-    public function valid()
+    public function valid() : bool
     {
         return (!$this->hasReachedEndOfFile);
     }
@@ -176,7 +176,7 @@ class RowIterator implements IteratorInterface
      * @throws \Box\Spout\Common\Exception\IOException If unable to read the sheet data XML
      * @return void
      */
-    public function next()
+    public function next() : void
     {
         $this->nextRowIndexToBeProcessed++;
 
@@ -374,7 +374,7 @@ class RowIterator implements IteratorInterface
      *
      * @return Row|null
      */
-    public function current()
+    public function current() : ?Row
     {
         $rowToBeProcessed = $this->rowBuffer;
 
@@ -399,7 +399,7 @@ class RowIterator implements IteratorInterface
      *
      * @return int
      */
-    public function key()
+    public function key() : int
     {
         // TODO: This should return $this->nextRowIndexToBeProcessed
         //       but to avoid a breaking change, the return value for
@@ -414,7 +414,7 @@ class RowIterator implements IteratorInterface
      *
      * @return void
      */
-    public function end()
+    public function end() : void
     {
         $this->xmlReader->close();
     }