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 the system-wide
php.ini file.
Parameters
funcname
Name of function to redefine
arglist
New list of arguments to be accepted by function
code
New code implementation
Return Values
Returns TRUE on success or FALSE on failure.
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