forward_static_call_array

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

    forward_static_call_array — Call a static method and pass the arguments as array

    Beschreibung

    forward_static_call_array(callable $callback, array $args): mixed

    Calls a user defined function or method given by the callback parameter. This function must be called within a method context, it can't be used outside a class. It uses the late static binding. All arguments of the forwarded method are passed as values, and as an array, similarly to call_user_func_array().

    Parameter-Liste

    callback

    The function or method to be called. This parameter may be an Array, with the name of the class, and the method, or a String, with a function name.

    parameter

    One parameter, gathering all the method parameter in one array.

    Hinweis:

    Note that the parameters for forward_static_call_array() are not passed by reference.

    Rückgabewerte

    Returns the function result, or false on error.

    Beispiele

    Beispiel #1 forward_static_call_array() example

    <?php

    class A
    {
    const     NAME = 'A';
    public static function     test() {
    $args = func_get_args();
    echo static::    NAME, " ".join(',', $args)." \n";
    }
    }

    class     B extends A
    {
    const     NAME = 'B';

    public static function     test() {
    echo     self::NAME, "\n";
    forward_static_call_array(array('A', 'test'), array('more', 'args'));
    forward_static_call_array( 'test', array('other', 'args'));
    }
    }

    B::test('foo');

    function     test() {
    $args = func_get_args();
    echo     "C ".join(',', $args)." \n";
    }

    ?>

    Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

    B
B more,args 
C other,args

    Siehe auch

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    User Contributed Notes 2 notes

    up
    2
    nino dot skopac at gmail dot com
    8 years ago
    Regarding namespaces:

    Be sure to include fully namespaced class path:

    <?php
    forward_static_call_array    (
    array(    'NAMESPACE\CLASS_NAME', 'STATIC_METHOD'),
    $params
    );
    up
    0
    israfilov93 at gmal dot com
    6 years ago
    one of academic example, when forward_static_call() can be useful

    <?php

    class A
    {
    public static function     test()
    {
    var_dump('we were here');
    return static::class;
    }
    }

    class     B extends A
    {
    public static function     test()
    {
    return     self::class;
    }
    }

    class     C extends B
    {
    public static function     test()
    {
    $grandParent = get_parent_class(parent::class); // $grandParent is A
    return forward_static_call([$grandParent, __FUNCTION__]); // calls A::test()
    }
    }

    // prints
    // string(12) "we were here"
    // string(1) "C"
    var_dump(C::test());
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