session_regenerate_id()

[optiplex]

hi all

 

when i run login-exec.php code, this error will come out

 

Warning: session_regenerate_id() [function.session-regenerate-id]: Cannot regenerate session id - headers already sent in Z:\www\algebra\user\login-exec.php on line 66

Warning: Cannot modify header information - headers already sent by (output started at Z:\www\algebra\user\login-exec.php:60) in Z:\www\algebra\user\login-exec.php on line 71

 

the coding is

<?php
//Start session
session_start();

//Include database connection details
require_once('config.php');

//Array to store validation errors
$errmsg_arr = array();

//Validation error flag
$errflag = false;

//Connect to mysql server
$link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
if(!$link) {
	die('Failed to connect to server: ' . mysql_error());
}

//Select database
$db = mysql_select_db(DB_DATABASE);
if(!$db) {
	die("Unable to select database");
}

//Function to sanitize values received from the form. Prevents SQL injection
function clean($str) {
	$str = @trim($str);
	if(get_magic_quotes_gpc()) {
		$str = stripslashes($str);
	}
	return mysql_real_escape_string($str);
}

//Sanitize the POST values
$username = clean($_POST['username']);
$password = clean($_POST['password']);

//Input Validations
if($username == '') {
	$errmsg_arr[] = 'Login ID missing';
	$errflag = true;
}
if($password == '') {
	$errmsg_arr[] = 'Password missing';
	$errflag = true;
}

//If there are input validations, redirect back to the login form
if($errflag) {
	$_SESSION['ERRMSG_ARR'] = $errmsg_arr;
	session_write_close();
	header("location: login.php");
	exit();
}

//Create query
$qry="SELECT * FROM members WHERE username='$username' AND password='".md5($_POST['password'])."'";
$result=mysql_query($qry);
echo $qry;
//exit;
//Check whether the query was successful or not
if($result) {
	if(mysql_num_rows($result) == 1) {
		//Login Successful
		session_regenerate_id(); //LINE 66
		$member = mysql_fetch_assoc($result);
		$_SESSION['SESS_MEMBER_ID'] = $member['member_id'];

		session_write_close();
		header("location: index.php");
		exit();
	}else {
		//Login failed
		header("location: login-failed.php");
		exit();
	}//LINE 71
}else {
	die("Query failed");
}
?>

 

[PFMaBiSmAd]

output started at Z:\www\algebra\user\login-exec.php:60 (line 60)

 

You are sending output to the browser on line 60. You cannot send output to the browser as that prevents any more headers from being sent.