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PHP - Manual: FFI::isNull

2024-12-20

FFI::isNull

(PHP 7 >= 7.4.0, PHP 8)

FFI::isNullChecks whether a FFI\CData is a null pointer

说明

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

Checks whether a FFI\CData is a null pointer.

参数

ptr

The handle of the pointer to a C data structure.

返回值

Returns whether a FFI\CData is a null pointer.

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官方地址:https://www.php.net/manual/en/ffi.isnull.php

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