src/Support/CallbackHandler.php
protected function handleCallback($callback, array $args = [])
    {
        $response = null;

        // Check if $callback is a closure.
        if ($callback instanceof \Closure || is_array($callback)) {
            $response = call_user_func($callback, $args);
        } elseif (is_string($callback)) {
            if (false !== strpos($callback, '@') || class_exists($callback)) {
                // We use a "ClassName@method" syntax.
                // Let's get a class instance and call its method.
                $callbackArray = $this->handleClassCallback($callback);
                $response = call_user_func($callbackArray, $args);
            } else {
                // Used as a classic callback function.
                $response = call_user_func($callback, $args);
            }
        }

        return $response;
    }
protected function handleCallback($callback, array $args = [])
    {
        $response = null;

        // Check if $callback is a closure.
        if ($callback instanceof \Closure || is_array($callback)) {
            $response = call_user_func($callback, $args);
        } elseif (is_string($callback)) {
            if (false !== strpos($callback, '@') || class_exists($callback)) {
                // We use a "ClassName@method" syntax.
                // Let's get a class instance and call its method.
                $callbackArray = $this->handleClassCallback($callback);
                $response = call_user_func($callbackArray, $args);
            } else {
                // Used as a classic callback function.
                $response = call_user_func($callback, $args);
            }
        }

        return $response;
    }
protected function handleCallback ( $ callback , array $ args = [ ] ) { $ response = null ; // Check if $callback is a closure. if ( $ callback instanceof \ Closure || is_array ( $ callback ) ) { $ response = call_user_func ( $ callback , $ args ) ; } elseif ( is_string ( $ callback ) ) { if ( false !== strpos ( $ callback , '@' ) || class_exists ( $ callback ) ) { // We use a "ClassName@method" syntax. // Let's get a class instance and call its method. $ callbackArray = $ this -> handleClassCallback ( $ callback ) ; $ response = call_user_func ( $ callbackArray , $ args ) ; } else { // Used as a classic callback function. $ response = call_user_func ( $ callback , $ args ) ; } } return $ response ; }
Handle the callback to execute.

@param string|array|callable $callback
@param array                 $args

@return mixed|string
Handle the callback to execute .