runkit_function_redefine
(PECL runkit >= 0.7.0)
runkit_function_redefine — Replace a function definition with a new implementation
Description
$funcname
, string $arglist
, string $code
[, bool $return_by_reference = NULL
[, string $doc_comment = NULL
]] ) : bool$funcname
, Closure $closure
[, string $doc_comment = NULL
] ) : boolNote: By default, only userspace functions may be removed, renamed, or modified. In order to override internal functions, you must enable the runkit.internal_override setting in php.ini.
Parameters
-
funcname -
Name of function to redefine
-
arglist -
New list of arguments to be accepted by function
-
code -
New code implementation
-
closure -
A closure that defines the function.
-
return_by_reference -
Whether the function should return by reference.
-
doc_comment -
The doc comment of the function.
Changelog
| Version | Description |
|---|---|
| runkit 1.0.4 |
An alternative syntax expecting a closure has been added.
|
| runkit 1.0.4 |
The optional parameters return_by_reference and
doc_comment have been added.
|
Examples
Example #1 A runkit_function_redefine() example
<?php
function testme() {
echo "Original Testme Implementation\n";
}
testme();
runkit_function_redefine('testme','','echo "New Testme Implementation\n";');
testme();
?>
The above example will output:
Original Testme Implementation New Testme Implementation
See Also
- runkit_function_add() - Add a new function, similar to create_function
- runkit_function_copy() - Copy a function to a new function name
- runkit_function_rename() - Change a function's name
- runkit_function_remove() - Remove a function definition
- runkit_method_redefine() - Dynamically changes the code of the given method
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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