FFI::alignof (PHP 7 >= 7.4.0, PHP 8)FFI::alignof — Gets the alignment 说明 public static FFI::alignof(FFI\CData|FFI\CType &$ptr): int Gets the alignment of the given FFI\CData or FFI\CType object. 参数 ptr The handle of the C data or type. 返回值 Returns the alignment of the given FFI\CData or FFI\CType object.