diff --git a/src/PhpSpreadsheet/DefinedName.php b/src/PhpSpreadsheet/DefinedName.php
index dbadd4ce..74ee0551 100644
--- a/src/PhpSpreadsheet/DefinedName.php
+++ b/src/PhpSpreadsheet/DefinedName.php
@@ -167,9 +167,9 @@ abstract class DefinedName
     /**
      * Set worksheet.
      */
-    public function setWorksheet(?Worksheet $value): self
+    public function setWorksheet(?Worksheet $worksheet): self
     {
-        $this->worksheet = $value;
+        $this->worksheet = $worksheet;
 
         return $this;
     }
@@ -203,10 +203,10 @@ abstract class DefinedName
     /**
      * Set localOnly.
      */
-    public function setLocalOnly(bool $value): self
+    public function setLocalOnly(bool $localScope): self
     {
-        $this->localOnly = $value;
-        $this->scope = $value ? $this->worksheet : null;
+        $this->localOnly = $localScope;
+        $this->scope = $localScope ? $this->worksheet : null;
 
         return $this;
     }
@@ -222,10 +222,10 @@ abstract class DefinedName
     /**
      * Set scope.
      */
-    public function setScope(?Worksheet $value): self
+    public function setScope(?Worksheet $worksheet): self
     {
-        $this->scope = $value;
-        $this->localOnly = $value !== null;
+        $this->scope = $worksheet;
+        $this->localOnly = $worksheet !== null;
 
         return $this;
     }
@@ -241,9 +241,9 @@ abstract class DefinedName
     /**
      * Resolve a named range to a regular cell range or formula.
      */
-    public static function resolveName(string $pDefinedName, Worksheet $pSheet): ?self
+    public static function resolveName(string $definedName, Worksheet $worksheet): ?self
     {
-        return $pSheet->getParent()->getDefinedName($pDefinedName, $pSheet);
+        return $worksheet->getParent()->getDefinedName($definedName, $worksheet);
     }
 
     /**
diff --git a/src/PhpSpreadsheet/HashTable.php b/src/PhpSpreadsheet/HashTable.php
index 90ea806b..e615b060 100644
--- a/src/PhpSpreadsheet/HashTable.php
+++ b/src/PhpSpreadsheet/HashTable.php
@@ -21,29 +21,29 @@ class HashTable
     /**
      * Create a new \PhpOffice\PhpSpreadsheet\HashTable.
      *
-     * @param IComparable[] $pSource Optional source array to create HashTable from
+     * @param IComparable[] $source Optional source array to create HashTable from
      */
-    public function __construct($pSource = null)
+    public function __construct($source = null)
     {
-        if ($pSource !== null) {
+        if ($source !== null) {
             // Create HashTable
-            $this->addFromSource($pSource);
+            $this->addFromSource($source);
         }
     }
 
     /**
      * Add HashTable items from source.
      *
-     * @param IComparable[] $pSource Source array to create HashTable from
+     * @param IComparable[] $source Source array to create HashTable from
      */
-    public function addFromSource(?array $pSource = null): void
+    public function addFromSource(?array $source = null): void
     {
         // Check if an array was passed
-        if ($pSource == null) {
+        if ($source == null) {
             return;
         }
 
-        foreach ($pSource as $item) {
+        foreach ($source as $item) {
             $this->add($item);
         }
     }
@@ -51,13 +51,13 @@ class HashTable
     /**
      * Add HashTable item.
      *
-     * @param IComparable $pSource Item to add
+     * @param IComparable $source Item to add
      */
-    public function add(IComparable $pSource): void
+    public function add(IComparable $source): void
     {
-        $hash = $pSource->getHashCode();
+        $hash = $source->getHashCode();
         if (!isset($this->items[$hash])) {
-            $this->items[$hash] = $pSource;
+            $this->items[$hash] = $source;
             $this->keyMap[count($this->items) - 1] = $hash;
         }
     }
@@ -65,11 +65,11 @@ class HashTable
     /**
      * Remove HashTable item.
      *
-     * @param IComparable $pSource Item to remove
+     * @param IComparable $source Item to remove
      */
-    public function remove(IComparable $pSource): void
+    public function remove(IComparable $source): void
     {
-        $hash = $pSource->getHashCode();
+        $hash = $source->getHashCode();
         if (isset($this->items[$hash])) {
             unset($this->items[$hash]);
 
@@ -109,26 +109,26 @@ class HashTable
     /**
      * Get index for hash code.
      *
-     * @param string $pHashCode
+     * @param string $hashCode
      *
      * @return int Index
      */
-    public function getIndexForHashCode($pHashCode)
+    public function getIndexForHashCode($hashCode)
     {
-        return array_search($pHashCode, $this->keyMap);
+        return array_search($hashCode, $this->keyMap);
     }
 
     /**
      * Get by index.
      *
-     * @param int $pIndex
+     * @param int $index
      *
      * @return IComparable
      */
-    public function getByIndex($pIndex)
+    public function getByIndex($index)
     {
-        if (isset($this->keyMap[$pIndex])) {
-            return $this->getByHashCode($this->keyMap[$pIndex]);
+        if (isset($this->keyMap[$index])) {
+            return $this->getByHashCode($this->keyMap[$index]);
         }
 
         return null;
@@ -137,14 +137,14 @@ class HashTable
     /**
      * Get by hashcode.
      *
-     * @param string $pHashCode
+     * @param string $hashCode
      *
      * @return IComparable
      */
-    public function getByHashCode($pHashCode)
+    public function getByHashCode($hashCode)
     {
-        if (isset($this->items[$pHashCode])) {
-            return $this->items[$pHashCode];
+        if (isset($this->items[$hashCode])) {
+            return $this->items[$hashCode];
         }
 
         return null;
diff --git a/src/PhpSpreadsheet/IOFactory.php b/src/PhpSpreadsheet/IOFactory.php
index 60995c34..0fb0e89b 100644
--- a/src/PhpSpreadsheet/IOFactory.php
+++ b/src/PhpSpreadsheet/IOFactory.php
@@ -69,19 +69,19 @@ abstract class IOFactory
     /**
      * Loads Spreadsheet from file using automatic IReader resolution.
      */
-    public static function load(string $pFilename): Spreadsheet
+    public static function load(string $filename): Spreadsheet
     {
-        $reader = self::createReaderForFile($pFilename);
+        $reader = self::createReaderForFile($filename);
 
-        return $reader->load($pFilename);
+        return $reader->load($filename);
     }
 
     /**
      * Identify file type using automatic IReader resolution.
      */
-    public static function identify(string $pFilename): string
+    public static function identify(string $filename): string
     {
-        $reader = self::createReaderForFile($pFilename);
+        $reader = self::createReaderForFile($filename);
         $className = get_class($reader);
         $classType = explode('\\', $className);
         unset($reader);