Team,
I have created a login page that checks user/pass against a MySQL Database. At the end of this script, you can see where if correct, the user is redirected to valid.html. My concern is that anyone can type in domain/valid.html and get the same page. How do I protect this page where only people who type in correct user / pass can see this page?
[php]<?php
$host = “localhost”;
$username = “timw79_poadmin”;
$password = “xpress13”;
$db_name = “timw79_po”;
$tbl_name=“members”; // Table name
// Connect to server and select databse.
mysql_connect("$host", “$username”, “$password”)or die(“cannot connect”);
mysql_select_db("$db_name")or die(“cannot select DB”);
// username and password sent from form
$myusername=$_POST[‘myusername’];
$mypassword=$_POST[‘mypassword’];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql=“SELECT * FROM $tbl_name WHERE username=’$myusername’ and password=’$mypassword’”;
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// Register $myusername, $mypassword and redirect to file “login_success.php”
session_register(“myusername”);
session_register(“mypassword”);
header(“location:valid.php”);
}
else {
echo "Wrong Username or Password
}
?>[/php]