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

说明

forward_static_call_array ( callable $function , array $parameters ) : mixed

Calls a user defined function or method given by the function 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().

参数

function

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.

Note:

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

返回值

Returns the function result, or false on error.

范例

Example #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 
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";
    }

?>

以上例程会输出:

B
B more,args 
C other,args

参见

User Contributed Notes

israfilov93 at gmal dot com 15-Aug-2018 07:04
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());
nino dot skopac at gmail dot com 30-Jul-2016 02:49
Regarding namespaces:

Be sure to include fully namespaced class path:

<?php
forward_static_call_array
(
    array(
'NAMESPACE\CLASS_NAME', 'STATIC_METHOD'),
   
$params
);