PHP Manual
Classkit 函数
Dynamically adds a new method to a given class

classkit_method_add

(PECL classkit >= 0.1)

classkit_method_add — Dynamically adds a new method to a given class

说明

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

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 to which this method will be added
methodname: The name of the method to add
args: Comma-delimited list of arguments for the newly-created method
code: The code to be evaluated when methodname is called
flags: The type of method to create, 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_add() example

 <?php
class Example {
    function foo() {
        echo "foo!\n";
    }
}

// create an Example object
$e = new Example();

// Add a new public method
classkit_method_add(
    'Example',
    'add',
    '$num1, $num2',
    'return $num1 + $num2;',
    CLASSKIT_ACC_PUBLIC
);

// add 12 + 4
echo $e->add(12, 4);
?>

以上例程会输出：

参见

classkit_method_copy() - Copies a method from class to another
classkit_method_redefine() - Dynamically changes the code of the given method
classkit_method_remove() - Dynamically removes the given method
classkit_method_rename() - Dynamically changes the name of the given method
create_function() - Create an anonymous (lambda-style) function