php/mysql app security issues? -

php/mysql app security issues? -

possible duplicate: where can find web-project “security checklist?”

i wondering when creating php/mysql app, whats main security issues developer got consider, know major broad topic, wanted overview of look, , while im wrting , devloping app, need aware of thans!! :))

very broad topic indeed. name basics, ideally should aware of:

don't trust user input. mean sanitize user input prevent sql injection

escape info beingness outputted on page appropriately prevent xss vulnerabilities , cookie data.

do not include files based on user input

log errors appropriately. ideally, in error log.

store passwords via 1 way hash incorporate secure salt.

and read through seven habits writing secure php applications.

php mysql security