runkit_method_redefine
(PECL runkit:0.7-0.9)
runkit_method_redefine — Dynamically changes the code of the given method
Description
bool runkit_method_redefine
( string $classname
, string $methodname
, string $args
, string $code
[, int $flags
] )
Note: This function cannot be used to manipulate the currently running (or chained) method.
Warning
這個函數是實驗性質的。這個函數的行為、名稱、和關於此函數的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此延伸需自行承擔風險。
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 methodname is called
- flags
-
The redefined method can be RUNKIT_ACC_PUBLIC, RUNKIT_ACC_PROTECTED or RUNKIT_ACC_PRIVATE
Note: This parameter is only used as of PHP 5, because, prior to this, all methods were public.
Return Values
成功回傳TRUE失敗回傳FALSE。
範例
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!