Fatal Errors

Hi dimalifragi,

The messages you get are deprecation notices and are far from fatal errors. They also have nothing to do with the WordPress version.
Deprecation notices simply state that in future PHP version the used functions or features will be removed. Using them in PHP 7.1 doesn’t break anything and just tells you to consider updating the code to make it future-proof.

If you are seeing deprecation notices in a production site I recommend adjusting your error_reporting level (see https://www.php.net/manual/en/function.error-reporting.php) and/or the error output (https://www.php.net/manual/en/errorfunc.configuration.php#ini.display-errors). Check https://phptherightway.com/#error_reporting for good practices regarding error reporting.

Thanks for the reply, yeap not fatal errors, my mistake.