Add phpstan until level 7

src/Spout/Reader/XLSX/Manager/SharedStringsCaching/CachingStrategyFactory.php

@@ -98,7 +98,7 @@ class CachingStrategyFactory
     /**
      * Returns the PHP "memory_limit" in Kilobytes
      *
-     * @return float
+     * @return int
      */
     protected function getMemoryLimitInKB()
     {
@@ -133,6 +133,9 @@ class CachingStrategyFactory
      */
     protected function getMemoryLimitFromIni()
     {
-        return \ini_get('memory_limit');
+        /** @var string $memoryLimit */
+        $memoryLimit = \ini_get('memory_limit');
+
+        return $memoryLimit;
     }
 }

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

@@ -32,7 +32,7 @@ class FileBasedStrategy implements CachingStrategyInterface
      */
     protected $maxNumStringsPerTempFile;
 
-    /** @var resource Pointer to the last temp file a shared string was written to */
+    /** @var resource|null Pointer to the last temp file a shared string was written to */
     protected $tempFilePointer;
 
     /**
@@ -42,7 +42,7 @@ class FileBasedStrategy implements CachingStrategyInterface
     protected $inMemoryTempFilePath;
 
     /**
-     * @var array Contents of the temporary file that was last read
+     * @var array<string> Contents of the temporary file that was last read
      * @see CachingStrategyFactory::MAX_NUM_STRINGS_PER_TEMP_FILE
      */
     protected $inMemoryTempFileContents;
@@ -78,7 +78,9 @@ class FileBasedStrategy implements CachingStrategyInterface
             if ($this->tempFilePointer) {
                 $this->globalFunctionsHelper->fclose($this->tempFilePointer);
             }
-            $this->tempFilePointer = $this->globalFunctionsHelper->fopen($tempFilePath, 'w');
+            /** @var resource $tempFilePointer */
+            $tempFilePointer = $this->globalFunctionsHelper->fopen($tempFilePath, 'w');
+            $this->tempFilePointer = $tempFilePointer;
         }
 
         // The shared string retrieval logic expects each cell data to be on one line only

src/Spout/Reader/XLSX/Manager/SharedStringsCaching/InMemoryStrategy.php

@@ -12,7 +12,7 @@ use Box\Spout\Reader\Exception\SharedStringNotFoundException;
  */
 class InMemoryStrategy implements CachingStrategyInterface
 {
-    /** @var \SplFixedArray Array used to cache the shared strings */
+    /** @var \SplFixedArray<string> Array used to cache the shared strings */
     protected $inMemoryCache;
 
     /** @var bool Whether the cache has been closed */

src/Spout/Reader/XLSX/Manager/SharedStringsManager.php

@@ -43,13 +43,13 @@ class SharedStringsManager
     /** @var InternalEntityFactory Factory to create entities */
     protected $entityFactory;
 
-    /** @var HelperFactory $helperFactory Factory to create helpers */
+    /** @var HelperFactory Factory to create helpers */
     protected $helperFactory;
 
     /** @var CachingStrategyFactory Factory to create shared strings caching strategies */
     protected $cachingStrategyFactory;
 
-    /** @var CachingStrategyInterface The best caching strategy for storing shared strings */
+    /** @var CachingStrategyInterface|null The best caching strategy for storing shared strings */
     protected $cachingStrategy;
 
     /**
@@ -182,6 +182,7 @@ class SharedStringsManager
         $sharedStringValue = '';
 
         // NOTE: expand() will automatically decode all XML entities of the child nodes
+        /** @var \DOMElement $siNode */
         $siNode = $xmlReader->expand();
         $textNodes = $siNode->getElementsByTagName(self::XML_NODE_T);
 

src/Spout/Reader/XLSX/Manager/SheetManager.php

@@ -54,7 +54,7 @@ class SheetManager
     /** @var \Box\Spout\Common\Helper\Escaper\XLSX Used to unescape XML data */
     protected $escaper;
 
-    /** @var array List of sheets */
+    /** @var array<Sheet> List of sheets */
     protected $sheets;
 
     /** @var int Index of the sheet currently read */

src/Spout/Reader/XLSX/Manager/StyleManager.php

@@ -28,7 +28,7 @@ class StyleManager
 
     /**
      * @see https://msdn.microsoft.com/en-us/library/ff529597(v=office.12).aspx
-     * @var array Mapping between built-in numFmtId and the associated format - for dates only
+     * @var array<int, string> Mapping between built-in numFmtId and the associated format - for dates only
      */
     protected static $builtinNumFmtIdToNumFormatMapping = [
         14 => 'm/d/yyyy', // @NOTE: ECMA spec is 'mm-dd-yy'
@@ -57,16 +57,16 @@ class StyleManager
     /** @var InternalEntityFactory Factory to create entities */
     protected $entityFactory;
 
-    /** @var array Array containing the IDs of built-in number formats indicating a date */
+    /** @var int[]|string[] Array containing the IDs of built-in number formats indicating a date */
     protected $builtinNumFmtIdIndicatingDates;
 
-    /** @var array Array containing a mapping NUM_FMT_ID => FORMAT_CODE */
+    /** @var array<int,string> Array containing a mapping NUM_FMT_ID => FORMAT_CODE */
     protected $customNumberFormats;
 
-    /** @var array Array containing a mapping STYLE_ID => [STYLE_ATTRIBUTES] */
+    /** @var array<mixed> Array containing a mapping STYLE_ID => [STYLE_ATTRIBUTES] */
     protected $stylesAttributes;
 
-    /** @var array Cache containing a mapping NUM_FMT_ID => IS_DATE_FORMAT. Used to avoid lots of recalculations */
+    /** @var array<int, bool> Cache containing a mapping NUM_FMT_ID => IS_DATE_FORMAT. Used to avoid lots of recalculations */
     protected $numFmtIdToIsDateFormatCache = [];
 
     /**
@@ -189,7 +189,7 @@ class StyleManager
     }
 
     /**
-     * @return array The custom number formats
+     * @return array<int,string>  The custom number formats
      */
     protected function getCustomNumberFormats()
     {
@@ -201,7 +201,7 @@ class StyleManager
     }
 
     /**
-     * @return array The styles attributes
+     * @return array<mixed>  The styles attributes
      */
     protected function getStylesAttributes()
     {
@@ -213,7 +213,7 @@ class StyleManager
     }
 
     /**
-     * @param array $styleAttributes Array containing the style attributes (2 keys: "applyNumberFormat" and "numFmtId")
+     * @param array<string, mixed> $styleAttributes Array containing the style attributes (2 keys: "applyNumberFormat" and "numFmtId")
      * @return bool Whether the style with the given attributes indicates that the number is a date
      */
     protected function doesStyleIndicateDate($styleAttributes)

src/Spout/Reader/XLSX/Manager/WorkbookRelationshipsManager.php

@@ -33,7 +33,7 @@ class WorkbookRelationshipsManager
     /** @var InternalEntityFactory Factory to create entities */
     private $entityFactory;
 
-    /** @var array Cache of the already read workbook relationships: [TYPE] => [FILE_NAME] */
+    /** @var array<string, string> Cache of the already read workbook relationships: [TYPE] => [FILE_NAME] */
     private $cachedWorkbookRelationships;
 
     /**
@@ -107,7 +107,7 @@ class WorkbookRelationshipsManager
      * It caches the result so that the file is read only once.
      *
      * @throws \Box\Spout\Common\Exception\IOException If workbook.xml.rels can't be read
-     * @return array
+     * @return array<string, string>
      */
     private function getWorkbookRelationships()
     {