I am a relative newbie to PHP and I am having issues with the below login script. I can get it to log me in correct no problems and validates the data correctly but what I want it to do is when the login fails I want it to return me to the index.php page and return a specific line of text along the lines of "username or password were incorrect please try again".
I can get it to return to the PHP page an d return an error but for some unknown reason to me it displays the error on the registration page.
BTW I have the returning to a page with error message if some fields are blank working for the registration page so not sure what i need to alter to get the same happening for a failed login
Any help you can give would be greatly appreciated:
Regards
Tommy
Below is my code for executing the login
Code: Select all
<?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
$login = clean($_POST['login']);
$password = clean($_POST['password']);
//Input Validations
if($login == '') {
$errmsg_arr[] = 'Login ID missing';
$errflag = true;
}
if($password == '') {
$errmsg_arr[] = 'Password missing';
$errflag = true;
}
//Create query
$qry="SELECT * FROM members WHERE login='$login' AND passwd='".md5($_POST['password'])."'";
$result=mysql_query($qry);
//Check whether the query was successful or not
if($result) {
if(mysql_num_rows($result) == 1) {
//Login Successful
session_regenerate_id();
$member = mysql_fetch_assoc($result);
$_SESSION['SESS_MEMBER_ID'] = $member['member_id'];
$_SESSION['SESS_FIRST_NAME'] = $member['firstname'];
$_SESSION['SESS_EMAIL'] = $member['email'];
session_write_close();
header("location: ../products.php");
exit();
}else {
//Login failed
//header("location: login-failed.php");
$errmsg_arr[] = 'username or password were incorrect please try again';
$errflag = true;
}
}else {
die("Query failed");
}
//If there are input validations, redirect back to the login form
if($errflag) {
$_SESSION['ERRMSG_ARR'] = $errmsg_arr;
session_write_close();
header("location: ../index.php");
exit();
}
?>