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runkit7_method_redefine

(PECL runkit7 >= Unknown)

runkit7_method_redefineDynamically 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();
?>

The above example will output:

Before: foo!
After: bar!

See Also

© 1997–2021 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.runkit7-method-redefine.php