Gets the size of C data or types « FFI::scope FFI::string » PHP Manual FFI Gets the size of C data or types FFI::sizeof (PHP 7 >= 7.4.0, PHP 8)FFI::sizeof — Gets the size of C data or types 說明 public static FFI::sizeof(FFI\CData|FFI\CType &$ptr): int Returns the size of the given FFI\CData or FFI\CType object. 參數 ptr The handle of the C data or type. 返回值 The size of the memory area pointed at by ptr.