表格验证 - 标准解决方案？

Question

I'm a little above a newbie with web programming and I don't know much about form validation. In my research, it seems that there are a variety of ways to validate form data and some of the methods depend on what you're going to do with the data. Then you have to-be deprecated functions like mysql_real_escape_string and something called "PDO" and the whole thing is downright complicated.

So, would it be reasonable/feasible for there to be a set of functions that are basically the standard way to validate form data? Like this...

function validate_for_sql()
function validate_for_email()
function validate_for_browser()

Maybe there should be more (something for integers?). The ideal would be things like sql injections and other nasties could ALL be handled via a set of generally accepted and rock-solid functions developed by and for the coding community.

Is this doable? Does it already exist somewhere.. maybe in a hidden lair? If so, can someone email me the secret password needed to access this information? :)

Answer 1

If I understand your question, then yes, this is possible by passing values of similar type inputs as parameters into functions. I'm sure if you search the web you'll find some pre-made functions that will do this. But, they don't take that long to make, plus creating them will enhance your skills. It would be good to have something like that, and as a matter of fact, ASP.NET actually does have inbuilt validation, but I'm afraid PHP does not (as far as I know).