[RESOLVED] PHP and input_check

Rivet

Has anyone heard of "check_input" ?

I downloaded a Form script that used the check_input function, assuming it was a PHP construct I just hadn't heard of. After a week or so of futzing with it, I finally tried to look it up and discovered it wasn't part of PHP or Apache. There was no include or .js for it; nothing I could find.

Does anyone understand where it comes from and what it takes to make it run? There's no hint in anything that was downloaded with it or anwhere else I can find though I found a few posts that said it had to be a private coding from somewhere. I'm apparently not the only to be duped by it.
It'd be OK except the code is very particular to making any changes to it, like additional security or filter_var uses.

Really curious,

Rivet:rolleyes:

bradgrafelman

It is neither a core PHP function nor one belonging to any official PHP extension. Thus, it is either a) a function created by some unofficial PHP extension loaded on your server (doubtful), or b) a user-defined function originating from somewhere in the script in question or in an include you might have overlooked.

Rivet

bradgrafelman;11028805 wrote:
It is neither a core PHP function nor one belonging to any official PHP extension. Thus, it is either a) a function created by some unofficial PHP extension loaded on your server (doubtful), or b) a user-defined function originating from somewhere in the script in question or in an include you might have overlooked.

Thanks much; that's appreciated. Maybe I'll "get it" when I've learned a little more PHP scripting. I'll be darned if I can see where it calls any function and there are no includes or requires, so it's obvious I have a lot to learn yet.

I'm marking this Resolved beause I don't think it's of any use to continue with it.

Best Regards,

Rivet

bradgrafelman

Actually... I just thought of a potentially easy way to determine where the function came from.

At the end of the script that uses check_input(), add something like this:

function check_input() { return; }

That should cause an error message similar to:

Fatal error: Cannot redeclare check_input() (previously declared in /path/to/some/script.php:123
) in /path/to/script/you/edited.php on line 321

which tells you exactly where check_input() was originally defined.

Rivet

Thanks much but no joy. I commented out my original input-$_POST and its associated ECHO and tested it. Then I placed your code at the bottom, immediately following the other lines.
I thought it might have been ment as HTML but that didn't help anything. The use of the semi-colon was confusing to me.

It "seems" to work, throws no error either, but nothing is returned to the screen at all. Checked the error log; nothing there.

Thanks for the advice though: I've added it to my "solve someday" list<g>.

Best Regards,

Rivet

That "check_input" stuff really started to bug me, so I went searching for it specifically. It HAD to be a function or something similar and found it! The code I had was missing a FUNCTION of course! Whether it was my fault or not I don't know, but I AM guilty of wasting some perople's time here when if I'd looked hard enough I'd have solved it even though I'd tried the search before.

I'll do better in the furure!

Rivet

traq

I did a google search for [font=monospace]check_input[/font], and most of the functions I found were very outdated and/or badly written and/or misguided ideas in the first place.

I would advise caution... 🙂