Securing your application is the most important things when building an application. This is the basic that every programmer should follow, it’s a must. However, sometime programmer might forgot the basic, and the more complex your application is, the harder it is to maintain and looking for security holes. While securing your application doesn’t mean that you will be totally safe from a hack, since there is many factor of why a web can be hacked, but reduce the possibility is always a good practice.

This article will give you walkthrough on the basics of creating a secured PHP application. I will give some step by step to filtering input, keep your code up to date and standard. I’ll also give you some good practice I always do.