Prado\Util\IInstanceCheck::isinstanceof PHP Method

isinstanceof() public method

The method checks $this or, if needed, the parameter $instance is of type class. In the case of a Class Behavior, the instance to which the behavior is attached may be important to determine if $this is an instance of a particular class.

public isinstanceof ( $class, $instance = null ) : boolean | null
return	boolean | null	if the this or the instance is of type class. When null, no information could be derived and the default mechanisms take over.