# runkit7_method_redefine

(PECL runkit7 >= Unknown)

runkit7_method_redefine — Dynamically changes the code of the given method

### 说明

runkit7_method_redefine(
string `$class_name`,
string `$method_name`,
string `$argument_list`,
string `$code`,
int `$flags` = RUNKIT7_ACC_PUBLIC,
string `$doc_comment` = `null`,
string `$return_type` = ?,
bool `$is_strict` = ?
): bool
runkit7_method_redefine(
string `$class_name`,
string `$method_name`,
Closure `$closure`,
int `$flags` = RUNKIT7_ACC_PUBLIC,
string `$doc_comment` = `null`,
string `$return_type` = ?,
bool `$is_strict` = ?
): bool

### 参数

`class_name`

  The class in which to redefine the method

`method_name`

  The name of the method to redefine

`argument_list`

  Comma-delimited list of arguments for the redefined method

`code`

  The new code to be evaluated when `method_name` is called

`closure`

  A closure that defines the method.

`flags`

  The redefined method can be `RUNKIT7_ACC_PUBLIC`, `RUNKIT7_ACC_PROTECTED` or `RUNKIT7_ACC_PRIVATE` optionally combined via bitwise OR with `RUNKIT7_ACC_STATIC`

`doc_comment`

  The doc comment of the method.

`return_type`

  The return type of the method.

`is_strict`

  Whether the method behaves as if it was declared in a file with `strict_types=1`.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 示例

示例 #1 runkit7_method_redefine() example

`<?php
class 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' method
runkit7_method_redefine(
'Example',
'foo',
'',
'return "bar!\n";',
RUNKIT7_ACC_PUBLIC
);
// output Example::foo() (after redefine)
echo "After: " . $e->foo();
?>`

以上示例会输出：

    Before: foo!
    After: bar!

### 参见

- runkit7_method_add() - Dynamically adds a new method to a given class
- runkit7_method_copy() - Copies a method from class to another
- runkit7_method_remove() - Dynamically removes the given method
- runkit7_method_rename() - Dynamically changes the name of the given method
- runkit7_function_redefine() - Replace a function definition with a new implementation

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