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<FFI::freeFFI::load>
^FFILast updated: Mon, 26 Oct 2026

FFI::isNull

(PHP 7 >= 7.4.0, PHP 8)

FFI::isNull — Checks whether a FFI\CData is a null pointer

Description

public static function FFI::isNull(FFI\CData &$ptr): bool

Checks whether a FFI\CData is a null pointer.

Parameters

ptr

The handle of the pointer to a C data structure.

Return Values

Returns whether a FFI\CData is a null pointer.


<FFI::freeFFI::load>
^FFILast updated: Mon, 26 Oct 2026