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Showing content from https://www.yiiframework.com/doc/api/2.0/yii-filters-verbfilter below:

VerbFilter, yii\filters\VerbFilter | API Documentation for Yii 2.0

Class yii\filters\VerbFilter

VerbFilter is an action filter that filters by HTTP request methods.

It allows to define allowed HTTP request methods for each action and will throw an HTTP 405 error when the method is not allowed.

To use VerbFilter, declare it in the behaviors() method of your controller class. For example, the following declarations will define a typical set of allowed request methods for REST CRUD actions.

public function behaviors()
{
    return [
        'verbs' => [
            'class' => \yii\filters\VerbFilter::class,
            'actions' => [
                'index'  => ['GET'],
                'view'   => ['GET'],
                'create' => ['GET', 'POST'],
                'update' => ['GET', 'PUT', 'POST'],
                'delete' => ['POST', 'DELETE'],
            ],
        ],
    ];
}

Property Details

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This property defines the allowed request methods for each action. For each action that should only support limited set of request methods you add an entry with the action id as array key and an array of allowed methods (e.g. GET, HEAD, PUT) as the value. If an action is not listed all request methods are considered allowed.

You can use '*' to stand for all actions. When an action is explicitly specified, it takes precedence over the specification given by '*'.

See also https://www.yiiframework.com/doc/guide/2.0/en/structure-controllers#action-ids For example, `php [ 'create' => ['GET', 'POST'], 'update' => ['GET', 'PUT', 'POST'], 'delete' => ['POST', 'DELETE'], 'author-comment' => ['POST', 'DELETE'], '*' => ['GET'], ] `.

Method Details

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Defined in: yii\base\BaseObject::__call()

Calls the named method which is not a class method.

Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.

Source code

                public function __call($name, $params)
{
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}

Defined in: yii\base\BaseObject::__construct()

Constructor.

The default implementation does two things:

Initializes the object with the given configuration $config.
Call init().

If this method is overridden in a child class, it is recommended that

the last parameter of the constructor is a configuration array, like $config here.
call the parent implementation at the end of the constructor.

public void __construct ( $config = [] ) $config array

Name-value pairs that will be used to initialize the object properties

Source code

                public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}

Defined in: yii\base\BaseObject::__get()

Returns the value of an object property.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $object->property;.

See also __get().

Source code

                public function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter($value);
    } elseif (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    } else {
        throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
    }
}

Defined in: yii\base\BaseObject::__unset()

Sets an object property to null.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing unset($object->property).

Note that if the property is not defined, this method will do nothing. If the property is read-only, it will throw an exception.

Source code

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
    } elseif (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Unsetting read-only property: ' . get_class($this) . '::' . $name);
    }
}

Defined in: yii\base\Behavior::attach()

Attaches the behavior object to the component.

The default implementation will set the $owner property and attach event handlers as declared in events(). Make sure you call the parent implementation if you override this method.

Source code

                public function attach($owner)
{
    $this->owner = $owner;
    foreach ($this->events() as $event => $handler) {
        $this->_attachedEvents[$event] = $handler;
        $owner->on($event, is_string($handler) ? [$this, $handler] : $handler);
    }
}

Source code

                public function beforeAction($event)
{
    $action = $event->action->id;
    if (isset($this->actions[$action])) {
        $verbs = $this->actions[$action];
    } elseif (isset($this->actions['*'])) {
        $verbs = $this->actions['*'];
    } else {
        return $event->isValid;
    }
    $verb = Yii::$app->getRequest()->getMethod();
    $allowed = array_map('strtoupper', $verbs);
    if (!in_array($verb, $allowed)) {
        $event->isValid = false;
        
        Yii::$app->getResponse()->getHeaders()->set('Allow', implode(', ', $allowed));
        throw new MethodNotAllowedHttpException('Method Not Allowed. This URL can only handle the following request methods: ' . implode(', ', $allowed) . '.');
    }
    return $event->isValid;
}

Defined in: yii\base\BaseObject::canGetProperty()

Returns a value indicating whether a property can be read.

A property is readable if:

the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
the class has a member variable with the specified name (when $checkVars is true);

See also canGetProperty().

public boolean canSetProperty ( $name, $checkVars = true ) $name string

The property name

$checkVars boolean

Whether to treat member variables as properties

return boolean

Whether the property can be written

Source code

                public function canSetProperty($name, $checkVars = true)
{
    return method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name);
}

Deprecated since 2.0.14. On PHP >=5.5, use ::class instead.

Source code

                public static function className()
{
    return get_called_class();
}

Defined in: yii\base\Behavior::detach()

Detaches the behavior object from the component.

The default implementation will unset the $owner property and detach event handlers declared in events(). Make sure you call the parent implementation if you override this method.

Source code

                public function detach()
{
    if ($this->owner) {
        foreach ($this->_attachedEvents as $event => $handler) {
            $this->owner->off($event, is_string($handler) ? [$this, $handler] : $handler);
        }
        $this->_attachedEvents = [];
        $this->owner = null;
    }
}

Declares event handlers for the $owner's events.

public array events ( ) return array

Events (array keys) and the corresponding event handler methods (array values).

Source code

                public function events()
{
    return [Controller::EVENT_BEFORE_ACTION => 'beforeAction'];
}

Defined in: yii\base\BaseObject::hasMethod()

Returns a value indicating whether a method is defined.

The default implementation is a call to php function method_exists(). You may override this method when you implemented the php magic method __call().

Source code

                public function hasMethod($name)
{
    return method_exists($this, $name);
}

Defined in: yii\base\BaseObject::hasProperty()

Returns a value indicating whether a property is defined.

A property is defined if:

the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
the class has a member variable with the specified name (when $checkVars is true);