--TEST-- stream_wrapper_unregister() & stream_wrapper_restore() --FILE-- <?php var_dump(stream_wrapper_unregister('file')); var_dump(fopen("file://".__FILE__, "r")); var_dump(stream_wrapper_restore('file')); var_dump(fopen("file://".__FILE__, "r")); echo "Done\n"; ?> --EXPECTF-- bool(true) Notice: fopen(): Unable to find the wrapper "file" - did you forget to enable it when you configured PHP? in %s on line %d Warning: fopen(): Plainfiles wrapper disabled in %s on line %d Warning: fopen(file://%s): failed to open stream: no suitable wrapper could be found in %s on line %d bool(false) bool(true) resource(%d) of type (stream) Done