fromcallable

Closure::fromCallable

Converts a callable into a closure

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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.

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callback
The callable to convert.

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

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Anonymous functions

First class callable syntax