Closure
PHP Manual

Closure::fromCallable

Converts a callable into a closure

Description

public static Closure Closure::fromCallable(callable $callback)

Create and return a new anonymous function from given callback using the current scope. This method checks if the callback is callable in the current scope and throws a TypeError if it is not.

Note:

As of PHP 8.1.0, First class callable syntax has the same semantics as this method.

Parameters

callback

The callable to convert.

Return Values

Returns the newly created Closure or throws a TypeError if the callback is not callable in the current scope.