Just in case anyone needs a regex that tells you that a string does NOT have an slash at the beginning, here you go. This is useful for handling paths defined by users and you want to check whether it is a relative or absolute path.
preg_match("#^(?!/).*#", $string);
Just a quick announcement. I’m now using WooCommerce for my eCommerce so please let me know if you have an issue. I was using Cart66 but it makes use of sessions, which are disallowed by WPEngine for both security and performance reasons. my WooCommerce setup looks ugly at the moment because I haven’t had time to work on the styles yet, so bear with me.