FFI::isNull

(PHP 7 >= 7.4.0)

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

説明

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

Checks whether a FFI\CData is a null pointer.

パラメータ

ptr

The handle of the pointer to a C data structure.

返り値

Returns whether a FFI\CData is a null pointer.