( ! ) Warning: Unsupported declare 'strict_types' in C:\wamp64\www\libs\phpspreadsheet\maennchen\zipstream-php\src\Stream.php on line 2

( ! ) Parse error: syntax error, unexpected ':', expecting ';' or '{' in C:\wamp64\www\libs\phpspreadsheet\maennchen\zipstream-php\src\Stream.php on line 30