PHP Manual
Closure
Converts a callable into a closure

Closure::fromCallable

(PHP 7 >= 7.1.0)

Closure::fromCallable — Converts a callable into a closure

Description

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

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.

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