PHP NestedArray::unsetValue方法代碼示例

 /**
  * Unsets a value in this configuration object.
  *
  * @param string $key
  *   Name of the key whose value should be unset.
  *
  * @return $this
  *   The configuration object.
  */
 public function clear($key)
 {
     $parts = explode('.', $key);
     if (count($parts) == 1) {
         unset($this->data[$key]);
     } else {
         NestedArray::unsetValue($this->data, $parts);
     }
     return $this;
 }

 /**
  * Removes destination property.
  *
  * @param string $property
  *   The name of the destination property.
  */
 public function removeDestinationProperty($property)
 {
     unset($this->rawDestination[$property]);
     NestedArray::unsetValue($this->destination, explode(static::PROPERTY_SEPARATOR, $property));
 }

 /**
  * Implements \Drupal\Core\Form\FormStateInterface::unsetValue()
  */
 public function unsetValue($key)
 {
     NestedArray::unsetValue($this->getValues(), (array) $key);
     return $this;
 }

 /**
  * Overrides the specified library asset.
  *
  * @param array $library
  *   The containing library definition.
  * @param array $sub_key
  *   An array containing the sub-keys specifying the library asset, e.g.
  *   @code['js']@endcode or @code['css', 'component']@endcode
  * @param array $overrides
  *   Specifies the overrides, this is an array where the key is the asset to
  *   be overridden while the value is overriding asset.
  */
 protected function setOverrideValue(array &$library, array $sub_key, array $overrides, $theme_path)
 {
     foreach ($overrides as $original => $replacement) {
         // Get the attributes of the asset to be overridden. If the key does
         // not exist, then throw an exception.
         $key_exists = NULL;
         $parents = array_merge($sub_key, [$original]);
         // Save the attributes of the library asset to be overridden.
         $attributes = NestedArray::getValue($library, $parents, $key_exists);
         if ($key_exists) {
             // Remove asset to be overridden.
             NestedArray::unsetValue($library, $parents);
             // No need to replace if FALSE is specified, since that is a removal.
             if ($replacement) {
                 // Ensure the replacement path is relative to drupal root.
                 $replacement = $this->resolveThemeAssetPath($theme_path, $replacement);
                 $new_parents = array_merge($sub_key, [$replacement]);
                 // Replace with an override if specified.
                 NestedArray::setValue($library, $new_parents, $attributes);
             }
         }
     }
 }

 /**
  * Tests unsetting nested array values.
  *
  * @covers ::unsetValue
  */
 public function testUnsetValue()
 {
     // Verify unsetting a non-existing nested element throws no errors and the
     // non-existing key is properly reported.
     $key_existed = NULL;
     $parents = $this->parents;
     $parents[] = 'foo';
     NestedArray::unsetValue($this->form, $parents, $key_existed);
     $this->assertTrue(isset($this->form['details']['element']['#value']), 'Outermost nested element key still exists.');
     $this->assertFalse($key_existed, 'Non-existing key not found.');
     // Verify unsetting a nested element.
     $key_existed = NULL;
     NestedArray::unsetValue($this->form, $this->parents, $key_existed);
     $this->assertFalse(isset($this->form['details']['element']), 'Removed nested element not found.');
     $this->assertTrue($key_existed, 'Existing key was found.');
 }

 public function clear($property)
 {
     NestedArray::unsetValue($this->data, $this->toKey($property));
     return $this;
 }