The Closure class

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

Introduction

Class used to represent anonymous functions.

Anonymous functions yield objects of this type. This class has methods that allow further control of the anonymous function after it has been created.

Besides the methods listed here, this class also has an __invoke method. This is for consistency with other classes that implement calling magic, as this method is not used for calling the function.

Class synopsis

final class Closure {

/* Methods */

private __construct()

public static bind(Closure $closure, ?object $newThis, object|string|null $newScope = "static"): ?Closure

public bindTo(?object $newThis, object|string|null $newScope = "static"): ?Closure

public call(object $newThis, mixed ...$args): mixed

public static fromCallable(callable $callback): Closure

}

Closure::__construct — Constructor that disallows instantiation
Closure::bind — Duplicates a closure with a specific bound object and class scope
Closure::bindTo — Duplicates the closure with a new bound object and class scope
Closure::call — Binds and calls the closure
Closure::fromCallable — Converts a callable into a closure