Php/docs/function.runkit7-method-redefine

• PHP Manual
• runkit7 函数
• Dynamically changes the code of the given method

runkit7_method_redefine

(PECL runkit7 >= Unknown)

runkit7_method_redefine — Dynamically changes the code of the given method

说明

runkit7_method_redefine ( string $classname , string $methodname , string $args , string $code [, int $flags = RUNKIT7_ACC_PUBLIC [, string $doc_comment = null [, string $return_type [, bool $is_strict ]]]] ) : bool

runkit7_method_redefine ( string $classname , string $methodname , Closure $closure [, int $flags = RUNKIT7_ACC_PUBLIC [, string $doc_comment = null [, string $return_type [, bool $is_strict ]]]] ) : bool

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

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。

范例

Example #1 runkit7_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' methodrunkit7_method_redefine(    'Example',    'foo',    ,    'return "bar!\n";',    RUNKIT7_ACC_PUBLIC);// output Example::foo() (after redefine)echo "After: " . $e->foo();?>

以上例程会输出：

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