Development PHP Security Checker

Hi all,

I was wondering if any of you guys knew a good way I could security check the code on a new site I am building (using PHP, HTML5, Javascript+jQuery, MySQL db). Being only an amateur coder im 100% its nicely hackable, and would like to plug any obvious security holes at the very least

Thanks!
Bogo

 

First off check for sql injection attacks, plenty of info on Google as to what they are and how they are executed

 

Thats awesome thanks - I didn't realise they were so easy. Checked off, will fix first