Remove unnecessary isset() checks and fix key exists checks

framework/CHANGELOG.md

@@ -16,6 +16,7 @@ Yii Framework 2 Change Log
 - Enh #19884: Added support Enums in Query Builder (sk1t0n)
 - Bug #19908: Fix associative array cell content rendering in Table widget (rhertogh)
 - Bug #19906: Fixed multiline strings in the `\yii\console\widgets\Table` widget (rhertogh)
+- Bug #19914: Fixed `ArrayHelper::keyExists()` and  `::remove()` functions when the key is a float and the value is `null` (rhertogh)
 - Enh #19920: Broadened the accepted type of `Cookie::$expire` from `int` to `int|string|\DateTimeInterface|null` (rhertogh)
 
 

framework/db/BaseActiveRecord.php

@@ -282,15 +282,15 @@ public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
      */
     public function __get($name)
     {
-        if (isset($this->_attributes[$name]) || array_key_exists($name, $this->_attributes)) {
+        if (array_key_exists($name, $this->_attributes)) {
             return $this->_attributes[$name];
         }
 
         if ($this->hasAttribute($name)) {
             return null;
         }
 
-        if (isset($this->_related[$name]) || array_key_exists($name, $this->_related)) {
+        if (array_key_exists($name, $this->_related)) {
             return $this->_related[$name];
         }
         $value = parent::__get($name);

framework/helpers/BaseArrayHelper.php

@@ -327,7 +327,12 @@ public static function setValue(&$array, $path, $value)
      */
     public static function remove(&$array, $key, $default = null)
     {
-        if (is_array($array) && (isset($array[$key]) || array_key_exists($key, $array))) {
+        // ToDo: This check can be removed when the minimum PHP version is >= 8.1 (Yii2.2)
+        if (is_float($key)) {
+            $key = (int)$key;
+        }
+
+        if (is_array($array) && array_key_exists($key, $array)) {
             $value = $array[$key];
             unset($array[$key]);
 
@@ -608,17 +613,20 @@ public static function map($array, $from, $to, $group = null)
      * Checks if the given array contains the specified key.
      * This method enhances the `array_key_exists()` function by supporting case-insensitive
      * key comparison.
-     * @param string $key the key to check
+     * @param string|int $key the key to check
      * @param array|ArrayAccess $array the array with keys to check
      * @param bool $caseSensitive whether the key comparison should be case-sensitive
      * @return bool whether the array contains the specified key
      */
     public static function keyExists($key, $array, $caseSensitive = true)
     {
+        // ToDo: This check can be removed when the minimum PHP version is >= 8.1 (Yii2.2)
+        if (is_float($key)) {
+            $key = (int)$key;
+        }
+
         if ($caseSensitive) {
-            // Function `isset` checks key faster but skips `null`, `array_key_exists` handles this case
-            // https://www.php.net/manual/en/function.array-key-exists.php#107786
-            if (is_array($array) && (isset($array[$key]) || array_key_exists($key, $array))) {
+            if (is_array($array) && array_key_exists($key, $array)) {
                 return true;
             }
             // Cannot use `array_has_key` on Objects for PHP 7.4+, therefore we need to check using [[ArrayAccess::offsetExists()]]

tests/framework/helpers/ArrayHelperTest.php

@@ -135,6 +135,29 @@ public function testRemove()
         $this->assertEquals('defaultValue', $default);
     }
 
+    /**
+     * @return void
+     */
+    public function testRemoveWithFloat()
+    {
+        if (version_compare(PHP_VERSION, '8.1.0', '>=')) {
+            $this->markTestSkipped('Using floats as array key is deprecated.');
+        }
+
+        $array = ['name' => 'b', 'age' => 3, 1.1 => null];
+
+        $name = ArrayHelper::remove($array, 'name');
+        $this->assertEquals($name, 'b');
+        $this->assertEquals($array, ['age' => 3, 1.1 => null]);
+
+        $floatVal = ArrayHelper::remove($array, 1.1);
+        $this->assertNull($floatVal);
+        $this->assertEquals($array, ['age' => 3]);
+
+        $default = ArrayHelper::remove($array, 'nonExisting', 'defaultValue');
+        $this->assertEquals('defaultValue', $default);
+    }
+
     public function testRemoveValueMultiple()
     {
         $array = [
@@ -506,14 +529,21 @@ public function testMergeEmpty()
     /**
      * @see https://github.com/yiisoft/yii2/pull/11549
      */
-    public function test()
+    public function testGetValueWithFloatKeys()
     {
-        $array = [];
-        $array[1.0] = 'some value';
+        if (version_compare(PHP_VERSION, '8.1.0', '>=')) {
+            $this->markTestSkipped('Using floats as array key is deprecated.');
+        }
 
-        $result = ArrayHelper::getValue($array, 1.0);
+        $array = [];
+        $array[1.1] = 'some value';
+        $array[2.1] = null;
 
+        $result = ArrayHelper::getValue($array, 1.2);
         $this->assertEquals('some value', $result);
+
+        $result = ArrayHelper::getValue($array, 2.2);
+        $this->assertNull($result);
     }
 
     public function testIndex()
@@ -712,6 +742,7 @@ public function testKeyExists()
             'a' => 1,
             'B' => 2,
         ];
+
         $this->assertTrue(ArrayHelper::keyExists('a', $array));
         $this->assertFalse(ArrayHelper::keyExists('b', $array));
         $this->assertTrue(ArrayHelper::keyExists('B', $array));
@@ -723,6 +754,27 @@ public function testKeyExists()
         $this->assertFalse(ArrayHelper::keyExists('c', $array, false));
     }
 
+    public function testKeyExistsWithFloat()
+    {
+        if (version_compare(PHP_VERSION, '8.1.0', '>=')) {
+            $this->markTestSkipped('Using floats as array key is deprecated.');
+        }
+
+        $array = [
+            1 => 3,
+            2.2 => 4, // Note: Floats are cast to ints, which means that the fractional part will be truncated.
+            3.3 => null,
+        ];
+
+        $this->assertTrue(ArrayHelper::keyExists(1, $array));
+        $this->assertTrue(ArrayHelper::keyExists(1.1, $array));
+        $this->assertTrue(ArrayHelper::keyExists(2, $array));
+        $this->assertTrue(ArrayHelper::keyExists('2', $array));
+        $this->assertTrue(ArrayHelper::keyExists(2.2, $array));
+        $this->assertTrue(ArrayHelper::keyExists(3, $array));
+        $this->assertTrue(ArrayHelper::keyExists(3.3, $array));
+    }
+
     public function testKeyExistsArrayAccess()
     {
         $array = new TraversableArrayAccessibleObject([