PHP Manual
runkit7 Functions
Dynamically changes the code of the given method

runkit7_method_redefine

(PECL runkit7 >= Unknown)

runkit7_method_redefine — Dynamically changes the code of the given method

Description

runkit7_method_redefine(
    string $class_name,
    string $method_name,
    string $argument_list,
    string $code,
    int $flags = RUNKIT7_ACC_PUBLIC,
    string $doc_comment = null,
    string $return_type = ?,
    bool $is_strict = ?
): bool

runkit7_method_redefine(
    string $class_name,
    string $method_name,
    Closure $closure,
    int $flags = RUNKIT7_ACC_PUBLIC,
    string $doc_comment = null,
    string $return_type = ?,
    bool $is_strict = ?
): bool

Parameters

class_name: The class in which to redefine the method
method_name: The name of the method to redefine
argument_list: Comma-delimited list of arguments for the redefined method
code: The new code to be evaluated when method_name is called
closure: A closure that defines the method.
flags: The redefined method can be RUNKIT7_ACC_PUBLIC, RUNKIT7_ACC_PROTECTED or RUNKIT7_ACC_PRIVATE optionally combined via bitwise OR with RUNKIT7_ACC_STATIC
doc_comment: The doc comment of the method.
return_type: The return type of the method.
is_strict: Whether the method 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 runkit7_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
runkit7_method_redefine(
    'Example',
    'foo',
    '',
    'return "bar!\n";',
    RUNKIT7_ACC_PUBLIC
);

// output Example::foo() (after redefine)
echo "After: " . $e->foo();
?>