runkit7_function_redefine
Replace a function definition with a new implementation
Description
bool runkit7_function_redefine(
string $function_name,
string $argument_list,
string $code,
bool $return_by_reference = null,
string $doc_comment = null,
string $return_type = ?,
bool $is_strict = ?
)
bool runkit7_function_redefine(
string $function_name,
Closure $closure,
string $doc_comment = null,
string $return_type = ?,
bool $is_strict = ?
)
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.
Parameters
-
function_name
-
Name of function to redefine
-
argument_list
-
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.
-
return_type
-
The return type of the function.
-
is_strict
-
Whether the function behaves as if it was declared in a file with
strict_types=1
Return Values
Returns true on success or false on failure.
Examples
Example #1 A runkit7_function_redefine example
<?php
function testme() {
echo "Original Testme Implementation\n";
}
testme();
runkit7_function_redefine('testme','','echo "New Testme Implementation\n";');
testme();
?>
The above example will output:
Original Testme Implementation
New Testme Implementation
See Also
- runkit7_function_add
- runkit7_function_copy
- runkit7_function_rename
- runkit7_function_remove
- runkit7_method_redefine