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<?php class Foo { /** * @param callable $callback * @return Rocket_Auth_Adapter_Interface */ public function registerAuthCallback($callback) { $this->authCallback = $callback; } /** * @param Zend_Auth_Result $result * @return Zend_Auth_Result */ public function authCallback(Zend_Auth_Result $result) { $successCallback = $this->authCallback; if (is_callable($successCallback)) { $result = $successCallback($result); } return $result; } } class Bar { public function callback(Zend_Auth_Result $result) { echo 'herewego'; } } class Zend_Auth_Result { } $foo = new Foo(); $bar = new Bar(); $foo->registerAuthCallback(array($bar, 'callback')); $result = new Zend_Auth_Result(); $foo->authCallback($result);

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