How to avoid double submission

[Son Nguyen]

Hi,

I remember this was discussing long before, but how do you avoid the user to click reload and submit the setting again (say they edit some fields, then click submit, then reload)

Thanks

[Justin Sampson]

Oh, I remember that was my thread

It's unset($whatyourunseting);

For example

<?
  if ("SUBMIT" == $submitarticle) {
   $sql = "INSERT INTO articles SET article='$article'";
   if (mysql_query($sql)) {
   echo("<P>Your article has been added.</P>");     
    } else {    
    echo("<P>Error adding article: " .
mysql_error() . "</P>");      
}
unset($submitarticle);
}
?>