_{Official ZPE/YASS documentation}is_function

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is_function (mixed f) ⇒ boolean

Returns a boolean on whether or not f is a function. This is a simplified and faster method than using the type function.

First available: Version 1.8.2

Notes

This is a simplified and faster method than using the get_type function.

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Official ZPE/YASS documentationis_function

Notes

_{Official ZPE/YASS documentation}is_function