(PECL runkit >= 0.7.0)
runkit_function_redefine — Replace a function definition with a new implementation
bool runkit_function_redefine ( string $funcname , string $arglist , string $code [, bool $return_by_reference = NULL [, string $doc_comment = NULL ]] )
bool runkit_function_redefine ( string $funcname , Closure $closure [, string $doc_comment = NULL ] )
Note: 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.
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.
Returns TRUE on success or FALSE on failure.
| 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. |
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
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https://secure.php.net/manual/en/function.runkit-function-redefine.php