Sorry I haven't got any code to post but this seemed like the more appropiate place to put my questions to you. I've have been learning PHP for a couple of months now and I feel I have a good basic understanding of mixing up PHP with MySQL but along the way so far I've ignored the 3 vital things in my title to push more towards learning how to code. It's now come to the point where I want to implement form validation, security & error reporting. A few things that always crop up when I read other peoples code are the following:
These I have already been learning about for the past couple of hours and I know as far as how to use implement them into any code I write. Are there any more functions I may would need to revise?
Regards,