Be Carefull ob un Mysql Injections.
https://de.wikipedia.org/wiki/SQL-InjectionIt`s maybe not actually the Securityst Technologie. Scrypt.cc got hacked by mysql injection. And used a got based on mysql/ddos page so far.
My opion but im not a Profi

There are many techniques to stop this, You shouldn't be scared of using MySql, You should be scared of how good your coding is.... or not.
In PHP there are techniques like Prepared Statements and escaping characters.