PHP Manual
FFI
Checks whether a FFI\CData is a null pointer

FFI::isNull

(PHP 7 >= 7.4.0, PHP 8)

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

Description

public static 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.

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