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
orCLASSKIT_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:
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