Looking for a small small script (verification script)

Hello;

This is my first request here. I know a little of PHP /MYSQL and have for quite some time, just not enough to make my own scripts from scratch. Just modify existing ones.

I need a small, small script. I have a live support link on my website for example. When clicked it runs/opens an executible on the clients machine where they can connect to me remotely.

I don’t want people just clicking on it, unless a verification process is done.

Basically what I’m thinking is to either give them the same code, or have a system autogenerate one? So they would click live support, get prompted with a fancy window that asks them for the code, and once verified it just runs the executible for them to download.

Its a very basic request and I can’t imagine it costing alot at all. Any other questions let me know. Please email me at here (chugger@comcast.net) with some pricing and details

Thank you

Note: this may be in the wrong forum... I looked below and I think it should be down there. Sorry

Depending on how simple you want it, you can do something as simple as this.

if ($_POST['submit') {
//Asuming the image showed 4012
$typed = $_POST['verify'];
if ($typed == '4012') {
echo 'Verification code was correct!';
}
else {
echo 'Verification code is invalid, please try again.';
}
}
else {
echo '<form action="index.php" method="POST>';
echo '<img src="/images/numbers.jpg>';
echo 'Type in the numbers above. <input type="text" name="verify" value="">';
echo '<input type="submit" name="submit" value="Verify it"></form>';
}

Make a small image in ms paint or something, and just type in numbers or words on it, since computers can't read the image as a number or word.

Not really an expert on these but I found a nifty script online las night so if you do a Google search on CAPTCHA scripts, I think it is what you need

Thanks guys. I think it was more like...storing them in a DB, and maybe having myself (admin) auto generate them when I want..and this way I could give it to the client, then they could put it in the input box and it would verify, thus allowing them to download.

Although that would prob be a little more complicated lol