Php/docs/function.classkit-method-redefine

• PHP Manual
• Classkit 函数
• Dynamically changes the code of the given method

classkit_method_redefine

(PECL classkit >= 0.1)

classkit_method_redefine — Dynamically changes the code of the given method

说明

classkit_method_redefine ( string $classname , string $methodname , string $args , string $code [, int $flags = CLASSKIT_ACC_PUBLIC ] ) : bool

Note: 此函数不能用来操作当前正常运行（或运行链上）的方法。

Warning 此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担。

参数

classname

The class in which to redefine the method

methodname

The name of the method to redefine

args

Comma-delimited list of arguments for the redefined method

code

The new code to be evaluated when methodname is called

flags

The redefined method can be CLASSKIT_ACC_PUBLIC, CLASSKIT_ACC_PROTECTED or CLASSKIT_ACC_PRIVATE

Note:

This parameter is only used as of PHP 5, because, prior to this, all methods were public.

返回值

成功时返回 true， 或者在失败时返回 false。

范例

Example #1 classkit_method_redefine() example

<?phpclass Example {    function foo() {        return "foo!\n";    }}// create an Example object$e = new Example();// output Example::foo() (before redefine)echo "Before: " . $e->foo();// Redefine the 'foo' methodclasskit_method_redefine(    'Example',    'foo',    ,    'return "bar!\n";',    CLASSKIT_ACC_PUBLIC);// output Example::foo() (after redefine)echo "After: " . $e->foo();?>

以上例程会输出：

Before: foo!
After: bar!

参见

• classkit_method_add() - Dynamically adds a new method to a given class
• classkit_method_copy() - Copies a method from class to another
• classkit_method_remove() - Dynamically removes the given method
• classkit_method_rename() - Dynamically changes the name of the given method