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Closure

Closure::bind

(PHP 5 >= 5.4.0)

Closure::bind Duplicates a closure with a specific bound object and class scope

说明

public static Closure Closure::bind ( Closure $closure , object $newthis [, mixed $newscope = 'static' ] )

This method is a static version of Closure::bindTo(). See the documentation of that method for more information.

参数

closure

The anonymous functions to bind.

newthis

The object to which the given anonymous function should be bound, or NULL for the closure to be unbound.

newscope

The class scope to which associate the closure is to be associated, or 'static' to keep the current one. If an object is given, the type of the object will be used instead. This determines the visibility of protected and private methods of the bound object.

返回值

Returns a new Closure object 或者在失败时返回 FALSE

范例

Example #1 Closure::bind() example

<?php
class {
    private static 
$sfoo 1;
    private 
$ifoo 2;
}
$cl1 = static function() {
    return 
A::$sfoo;
};
$cl2 = function() {
    return 
$this->ifoo;
};

$bcl1 Closure::bind($cl1null'A');
$bcl2 Closure::bind($cl2, new A(), 'A');
echo 
$bcl1(), "\n";
echo 
$bcl2(), "\n";
?>

以上例程的输出类似于:

1
2

参见


Closure
PHP 手册