checklogin.php

<?php
session_start();
include("functions.php");

$host="localhost"; // Host name
$username="users_camilla"; // Mysql username
$password=""; // Mysql password ER UDFYLDT
$db_name="users_camilla"; // Database name
$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 $tbl_name WHERE myusername='$myusername' and mypassword='$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['myusername'] = $myusername;
$_SESSION['loggetind'] = $loggetind;
$_SESSION['userid'] = mysql_result($result,0);
header("location:login_success.php");
}
else {
echo "Forkert Stutterinavn, eller Password.";
}
?>