Login Problem.

off.the.walls

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /Applications/XAMPP/xamppfiles/htdocs/cart/admin/admin_login.php:2) in /Applications/XAMPP/xamppfiles/htdocs/cart/admin/admin_login.php on line 4

Thats the error

This is the code


<?php

session_start();

if(isset($_SESSION)){
header("location: index.php");
exit();
}
?>

<?php
if(isset($_POST) && isset($_POST)){

$manager = preg_replace('#[^A-Za-z0-9]#i', '' , $_SESSION);
$password = preg_replace('#[^A-Za-z0-9]#i', '' , $_SESSION);

include '../storescripts/mysql_connect.php';

$sql = mysql_query('SELECT id FROM admin WHERE username="$manager" AND password="$password" LIMIT 1');

$existCount = mysql_num_rows($sql);
if($existCount == 1){

while($row = mysql_fetch_array($sql)){
$id = $row;
}

$_SESSION = $id;
$_SESSION = $manager;
$_SESSION = $password;
header("location: index.php");
exit();
}else{
echo'That information is incorrect, try again <a href="index.php"> Click Here</a>';
exit();
}


}

?>

Mo14

I had this error a few days ago. I came across this: http://stackoverflow.com/questions/8028957/headers-already-sent-by-php

I got around it by adding

ob_start()

before the header call.
I don't claim to be a PHP expert so if any come along and this is considered bad practice, don't hurt me.