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Retrieving Class Name from Static Call in Extended PHP Class
In the world of PHP, it's often necessary to determine the classname from a static function call, especially when working with extended classes. Consider the following scenario:
<code class="php">class Action { function n() {/* some implementation */} } class MyAction extends Action {/* further implementation */}</code>
In this situation, calling MyAction::n(); should return "MyAction" as the classname. However, the __CLASS__ variable only returns the parent class name ("Action").
Late Static Bindings (PHP 5.3 ):
PHP 5.3 introduced late static bindings, which enable resolving the target class at runtime. This feature makes it possible to determine the called class using the get_called_class() function:
<code class="php">class Action { public static function n() { return get_called_class(); } } class MyAction extends Action { } echo MyAction::n(); // Output: MyAction</code>
Alternative Approach (Pre-PHP 5.3):
Prior to PHP 5.3, an alternative solution relies on using a non-static method and the get_class() function:
<code class="php">class Action { public function n(){ return get_class($this); } } class MyAction extends Action { } $foo = new MyAction; echo $foo->n(); // Output: MyAction</code>
Remember, this approach only works for non-static methods, as the get_class() function takes an instance of the class as an argument.
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