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forward_static_call_array

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

forward_static_call_arrayCall a static method and pass the arguments as array

Descrição

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().

Parâmetros

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.

Nota:

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

Valor Retornado

Returns the function result, or false on error.

Exemplos

Exemplo #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";
}

?>

O exemplo acima irá imprimir:

B
B more,args 
C other,args

Veja Também

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User Contributed Notes 2 notes

up
3
nino dot skopac at gmail dot com
6 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
4 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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