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

### Beschreibung

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

Checks whether a FFI\CData is a null pointer.

### Parameter-Liste

`ptr`
  The handle of the pointer to a C data structure.

### Rückgabewerte

Returns whether a FFI\CData is a null pointer.

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open