forward_static_call_array()
(PHP 5 >= 5.3.0, PHP 7)
Call a static method and pass the arguments as array
说明
forward_static_call_array(callable $function,array $parameters): mixed
Calls a user defined function or method given by the$functionparameter. This function must be called within a method context, it can't be used outside a class. It uses thelate static binding. All arguments of the forwarded method are passed as values, and as an array, similarly tocall_user_func_array().
参数
- $function
The function or method to be called. This parameter may be anarray, with the name of the class, and the method, or astring, with a function name.
- $parameter
One parameter, gathering all the method parameter in one array.
Note:
Note that the parameters forforward_static_call_array()are not passed by reference.
返回值
Returns the function result,orFALSE
on error.
范例
Example #1forward_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"; } ?>
以上例程会输出:
B B more,args C other,args
参见
forward_static_call()
Call a static methodcall_user_func()
把第一个参数作为回调函数调用call_user_func_array()
调用回调函数,并把一个数组参数作为回调函数的参数is_callable()
检测参数是否为合法的可调用结构- callback类型的信息
Regarding namespaces: Be sure to include fully namespaced class path: <?php forward_static_call_array( array('NAMESPACE\CLASS_NAME', 'STATIC_METHOD'), $params );
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());