runkit_method_redefine
(PECL runkit >= 0.7.0)
runkit_method_redefine — Dynamically changes the code of the given method
Description
$classname
, string $methodname
, string $args
, string $code
[, int $flags = RUNKIT_ACC_PUBLIC
] )Note: This function cannot be used to manipulate the currently running (or chained) method.
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
Parameters
-
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
methodnameis called -
flags -
The redefined method can be
RUNKIT_ACC_PUBLIC,RUNKIT_ACC_PROTECTEDorRUNKIT_ACC_PRIVATENote:
This parameter is only used as of PHP 5, because, prior to this, all methods were public.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 runkit_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
runkit_method_redefine(
'Example',
'foo',
'',
'return "bar!\n";',
RUNKIT_ACC_PUBLIC
);
// output Example::foo() (after redefine)
echo "After: " . $e->foo();
?>
The above example will output:
Before: foo! After: bar!
See Also
- runkit_method_add() - Dynamically adds a new method to a given class
- runkit_method_copy() - Copies a method from class to another
- runkit_method_remove() - Dynamically removes the given method
- runkit_method_rename() - Dynamically changes the name of the given method
- runkit_function_redefine() - Replace a function definition with a new implementation
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Изменение поведения PHP
- runkit
- Функция Runkit_Sandbox() - Класс Runkit Sandbox -- это виртуальная машина PHP
- Функция Runkit_Sandbox_Parent() - Класс анти-песочницы для Runkit
- runkit_class_adopt
- runkit_class_emancipate
- runkit_constant_add
- runkit_constant_redefine
- runkit_constant_remove
- runkit_function_add
- runkit_function_copy
- runkit_function_redefine
- runkit_function_remove
- runkit_function_rename
- runkit_import
- runkit_lint_file
- runkit_lint
- runkit_method_add
- runkit_method_copy
- runkit_method_redefine
- runkit_method_remove
- runkit_method_rename
- runkit_return_value_used
- runkit_sandbox_output_handler
- runkit_superglobals
Коментарии
A sample implementation of redefining a public static method of symfony's sfDate to 'travel in time' with runkit:
<?php
//Going back in time 3 days
$subtractablePeriod = 3;
runkit_method_redefine('sfDateTimeToolkit', 'now', '', 'return strtotime("-'.$subtractablePeriod.' days");', (RUNKIT_ACC_PUBLIC | RUNKIT_ACC_STATIC));
//Do Stuff here that would otherwise get the current date
//Return to realtime
runkit_method_redefine('sfDateTimeToolkit', 'now', '', 'return time();', (RUNKIT_ACC_PUBLIC | RUNKIT_ACC_STATIC));
?>