Email Problem - Webmaster Forum - Web Design, Programming and SEO forums

02-17-2007, 09:01 PM

Xuxa

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Email Problem

I have a script I made a contact form script and once I click submit it sends the email then if u refresh it, it sends it agian. How can I fix this?

02-17-2007, 09:28 PM

localhost

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Im not sure how you can fix it but it is because you are sending post data, although, why would you need to refresh?

02-17-2007, 09:34 PM

Xuxa

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I don't but if someone does refresh it it will send the email agian how can I stop that?

02-17-2007, 09:52 PM

JochenVandeVelde

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Send a message via MSN to JochenVandeVelde

You could build an anti-flooding system, setting a cookie with time and date, after the user sent an email check whether they have waited long enough to send another email. If you need help on this, msn: info@jochenvandevelde.com

02-17-2007, 11:30 PM

Zara

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The easiest way I've found is to do a redirect directly after.
header("location:sent.php");

However, if your looking for security you can use cookies as said above but people can disable them... The most secure way is to store the users IP in the database with a timestamp and see how long it's been...

02-18-2007, 07:02 AM

Sketch

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Yer I was thinking use a header redirect, thats usally what I do to stop people double posting.

The cookie idea is good as well, you could use sessions as well if you wanted to.

PHP Code:


			


if(isset($_SESSION['hasSent'])) {

if($_SESSION['hasSent'] < time() - 120) {

//Make sure it has been more then two minutes

sendEmail($_POST['data']);

//Create / Update Session

$_SESSION['hasSent'] = time();

}

} else {

//Send Email

sendEmail($_POST['data']);

//Create / Update Session

$_SESSION['hasSent'] = time();

}