redirection

[Nickosssss]

Hello, I have this form so people can get in insert their URN and password and log in. If there is an error (after checking with database entries...not yet built) a message is displayed otherwise i want the user to be redirected on another php file. The header does not work there because it is not on the beginning and i wnat to ask if someone knows how to do it or another more flexible way

thanks

<?php

require ('main.php');

$page = new homePage();
$page -> content = '<p class = "content"> Student Log In </p> <br><br><br><br> ';
$page -> Display();

if(isset($_POST['subButton']))
{
$error_msg='';

if(trim($_POST['urn'])=='' || strlen(trim($_POST['urn'])) < 7)
{
	?>
	<div style = "position:absolute; top:300px; left:300">
	<?
	$error_msg.="Please enter your urn <br>";
	?>
	</div>
	<?
}

if(trim($_POST['pass'])=='' || strlen(trim($_POST['pass'])) < 6) 
{
	$error_msg.="Please enter your password<br>";
}


if($error_msg=='')
{
	 header('location: ' . 'stud.php'); 
	 exit();

} 
else 
{
	echo "<font color=red size = 4><b>$error_msg</b></font>";
}

}
?>
<form class = "myform" action="" method="POST">
<div style = "position:relative; top:0%; left:35">
<font size = "4"><b> Please insert your URN and password </b></font><br><br>
<table border="1" cellpadding="7" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="600" id="AutoNumber1">
<tr>
<td align = "right" width = "16%"> URN: </td>
<td width = "84%"><input class = "input" type = "text" name = "urn" value = "<?echo $_POST['urn'];?>" maxlength = "10"></td>
</tr>

					<tr>
						<td align = "right" width = "16%"> password: </td>
						<td width = "84%"><input class = "input" type = "password" name = "pass" value = "<?echo $_POST['pass'];?>" maxlength = "10"></td>
					</tr>
					<tr>
						<td colspan = "2" align = "middle"><input class = "button" type="submit" name="subButton" value="  > Log In <  "></td>
					</tr>


				</table>


		</div>
	</form> 

<?php

$page -> Display2();

?>

[Installer]

Put "ob_start()" right after your first php opening tag, and "ob_end_flush()" right before the last closing tag.

Another solution is to better structure the script, for instance by building your output by concatenating an output string. Then at the end of the script simply echo the string(s). You'll be better able to separate the presentation from the behind-the-scenes stuff; then you'd have a more readable, easier to maintain, more adaptable script.

[bradgrafelman]

For a simple, less HTML 4.0 compliant method, echo out a META tag to refresh:

<meta http-equiv="Refresh" content="3; URL=stud.php">

At any rate, if you're redirecting using "Location: " in a header, RFC standards state you should be using a full URI, not relative paths ('mysite.com/path/to/stud.php' vs. 'stud.php', the former of the two being correct).

EDIT: Forgot to give a brief note on the meta tag I used! The '3' in the content section indicates the number of seconds to wait before redirecting; i.e. give the user some time to read an error message before you whisk them off to some other page.

[Nickosssss]

...

[bradgrafelman]

Does that mean you found a solution to your issue? If so, please don't forget to MARK THIS THREAD RESOLVED using the link at the bottom of the page.

[Nickosssss]

yes it does work with ob_start();

how do i rate it?

thanks again