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- 变量与类型相关扩展
- Classkit
- Classkit 函数
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
methodnameis called -
flags -
The type of method to create, can be
CLASSKIT_ACC_PUBLIC,CLASSKIT_ACC_PROTECTEDorCLASSKIT_ACC_PRIVATENote:
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：
16
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
User Contributed Notes 1 note
up down 1 Lester ¶11 years ago
If you creates methods by using classkit_method_add(), they are not visible in get_class_methods().
class A
{
public function foo()
{
return "foo!\n";
}
}
classkit_method_redefine('A','bar','','return "bar !\n";',CLASSKIT_ACC_PUBLIC);
print_r(get_class_methods('A'));
// writes only "foo"
add a note
官方地址：https://www.php.net/manual/en/function.classkit-method-add.php