Reloading form when errored

sturoy

I have got a form on my website, of which the action page takes the input from the form, and inserts it into a database.

However, I would like to put some error handling in, so that when, for instance, a field is missed out, or non numeric data is put into a numeric field, the form is reloaded, with the original correct information included.

Is there a way of saying something like:

if ($this_event_happens)
{
relaod the previous page
}

???? Or do I need to use some JavaScript? And how do I get the original info into the form? Do I record them as session variables?

Thanks in advance for your help

TTT

easier way is to use javascript, some cases there is problem with return true .... i that case you can use } else { void(0); }

<html><head>
<SCRIPT LANGUAGE='JavaScript' TYPE='text/javascript'>
<!--
function checkForm() {
if(document.yourFormName.yourField.value = "") {
 alert("Fill field");
 return false;
 } else {
 return true;
 }
 }
//-->
</SCRIPT>

</head>
<body>
<form name="yourFormName" method="post" action="next.php" onsubmit="javascript: return checkForm();">
<input type="text" name="yourField">
<input type="submit" name="submit" value="Go">
</form>
</body>
</html>

remember to place it to head or make file of javascript and use
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript" src="yourJSfile.js"></SCRIPT>

sturoy

Thanks, that worked brilliantly... for the time being....!!!

I am thinking about trying to do some more of the validation, but might do it in PHP, so nobody can see my code.....

Cheers!!