Warning: Unsupported declare 'strict_types' in C:\AppServ\www\caiwu\vendor\maennchen\zipstream-php\src\File.php on line 2

Parse error: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in C:\AppServ\www\caiwu\vendor\maennchen\zipstream-php\src\File.php on line 25