I have a really really big problem with my isset $_GET. I have a website where I created some sort of question page, and people can spam it.
For example, after I fill all the fields in my question page, I press Submit. When the page is loading if I again press Submit, in my database will appear 2 rows with answers from questions. If I press 5 times it will be 5 rows.
I tried to do something but it doesn't seem to work.
The button:
<a href="?X=<?php echo $tid; ?>"><button type="button" class="btn btn-danger">Submit!</button></a>
My script:
<?php
include("connect.php");
$anti = 0;
if($anti == 0)
{
$anti = 1;
if(isset($_GET['X']))
{
$id = (int)$_GET['X'];
mysql_query("INSERT INTO questions (1, 2, 3, 4, 5) VALUES ('q1', 'q2', 'q3', 'q4', 'q5')");
//and other mysql_queries here...
header("location: index.php");
}
}
include("header.php");
?>
How else should I approach this issue?
