ReflectionFunction::invoke

    (PHP 5, PHP 7, PHP 8)

    ReflectionFunction::invoke — Invokes function

    Beschreibung

    public ReflectionFunction::invoke(mixed ...$args): mixed

    Invokes a reflected function.

    Parameter-Liste

    args

    The passed in argument list. It accepts a variable number of arguments which are passed to the function much like call_user_func() is.

    Rückgabewerte

    Returns the result of the invoked function call.

    Beispiele

    Beispiel #1 ReflectionFunction::invoke() example

    <?php
    function title($title, $name)
    {
    return     sprintf("%s. %s\r\n", $title, $name);
    }

    $function = new ReflectionFunction('title');

    echo     $function->invoke('Dr', 'Phil');
    ?>

    Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

    Dr. Phil

    Anmerkungen

    Hinweis:

    ReflectionFunction::invoke() cannot be used when reference parameters are expected. ReflectionFunction::invokeArgs() has to be used instead (passing references in the argument list).

    Siehe auch

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 1 note

    up
    0
    spark at limao dot com dot br
    14 years ago
    I know Reflections classes have a lot of power, but sometimes all we need is to store a annonymus function or even create a simple callback somewhere.so here it is, the Callback class:<?php    class Callback{        private $name = false;                public function Callback($obj,$call=false){            $name = array($obj);            if($call) $name[] = $call;                        $this->name = $name;        }        public function invoke($params=array()){            return call_user_func_array($this->name,$params);        }    }?>Usage:<?php    function sayName(){        return "goku";    }        $myVar = new Callback("sayName");        echo "Hi, I am ".$myVar->invoke()."!";        //also works with methods: new Callback($obj,"method");?>
    ＋add a note
    To Top