Hard-coded, primitive values may be passed to the component using simple HTML attribute strings. – Niet the Dark Absol May 16 '16 at 13:14 PHP 8 is a major version and has breaking changes from previous versions. You must use CSS for those. AUTO_INCREMENT applies only to integer and floating-point types. +h: Sets the hidden file attribute to the file or directory.-h: Clears the hidden attribute. php -v for the command line interpreter