FFI::isNull
(PHP 7 >= 7.4.0, PHP 8)
FFI::isNull — Checks whether a FFI\CData is a null pointer
參數
-
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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(PHP 7 >= 7.4.0, PHP 8)
FFI::isNull — Checks whether a FFI\CData is a null pointer
ptrThe handle of the pointer to a C data structure.
Returns whether a FFI\CData is a null pointer.