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

Behavior, yii\base\Behavior | API Documentation for Yii 2.0

Class yii\base\Behavior Inheritance yii\base\Behavior » yii\base\BaseObject Implements yii\base\Configurable Subclasses yii\base\ActionFilter, yii\behaviors\AttributeBehavior, yii\behaviors\AttributeTypecastBehavior, yii\behaviors\AttributesBehavior, yii\behaviors\BlameableBehavior, yii\behaviors\CacheableWidgetBehavior, yii\behaviors\OptimisticLockBehavior, yii\behaviors\SluggableBehavior, yii\behaviors\TimestampBehavior, yii\filters\AccessControl, yii\filters\AjaxFilter, yii\filters\ContentNegotiator, yii\filters\Cors, yii\filters\HostControl, yii\filters\HttpCache, yii\filters\PageCache, yii\filters\RateLimiter, yii\filters\VerbFilter, yii\filters\auth\AuthMethod, yii\filters\auth\CompositeAuth, yii\filters\auth\HttpBasicAuth, yii\filters\auth\HttpBearerAuth, yii\filters\auth\HttpHeaderAuth, yii\filters\auth\QueryParamAuth Available since version 2.0 Source Code https://github.com/yiisoft/yii2/blob/master/framework/base/Behavior.php

Behavior is the base class for all behavior classes.

A behavior can be used to enhance the functionality of an existing component without modifying its code. In particular, it can "inject" its own methods and properties into the component and make them directly accessible via the component. It can also respond to the events triggered in the component and thus intercept the normal code execution.

For more details and usage information on Behavior, see the guide article on behaviors.

Property Details Method Details

Hide inherited methods

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 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();
}

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.

Child classes may override this method to declare what PHP callbacks should be attached to the events of the $owner component.

The callbacks will be attached to the $owner's events when the behavior is attached to the owner; and they will be detached from the events when the behavior is detached from the component.

The callbacks can be any of the following:

method in this behavior: 'handleClick', equivalent to [$this, 'handleClick']
object method: [$object, 'handleClick']
static method: ['Page', 'handleClick']
anonymous function: function ($event) { ... }

The following is an example:

[
    Model::EVENT_BEFORE_VALIDATE => 'myBeforeValidate',
    Model::EVENT_AFTER_VALIDATE => 'myAfterValidate',
]

public array events ( ) return array

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

Source code

                public function events()
{
    return [];
}

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);