Mcn kauru hari mata me code eka PDO walin karala dennako loku udawuwak mcn 
PHP:
<?php
//Start session
session_start();
//Array to store validation errors
$errmsg_arr = array();
//Validation error flag
$errflag = false;
//Connect to mysql server
$link = mysql_connect('localhost','root',"");
if(!$link) {
die('Failed to connect to server: ' . mysql_error());
}
//Select database
$db = mysql_select_db('sales', $link);
if(!$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['username']);
$password = clean($_POST['password']);
//Input Validations
if($login == '') {
$errmsg_arr[] = 'Username 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: index.php");
exit();
}
//Create query
$qry="SELECT * FROM user WHERE username='$login' AND password='$password'";
$result=mysql_query($qry);
//Check whether the query was successful or not
if($result) {
if(mysql_num_rows($result) > 0) {
//Login Successful
session_regenerate_id();
$member = mysql_fetch_assoc($result);
$_SESSION['SESS_MEMBER_ID'] = $member['id'];
$_SESSION['SESS_FIRST_NAME'] = $member['name'];
$_SESSION['SESS_LAST_NAME'] = $member['position'];
//$_SESSION['SESS_PRO_PIC'] = $member['profImage'];
session_write_close();
header("location: main/index.php");
exit();
}else {
//Login failed
header("location: index.php");
exit();
}
}else {
die("Query failed");
}
?>
