i am new to the PHP and i building a website which is mostly copied from diff sources and i want the user who had logged in to be displayed but it does not. here is my HTML for the page
<?PHP
session_start();
if (!(isset($_SESSION['username']) && $_SESSION['username'] != '')) {
header ("Location: checklogin.php");
}
?>
<!DOCTYPE html>
<html>
<head>
<title>MAP MY WAY</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta name="description" content="Google Maps API V3: Custom Directions Panel" />
<meta name="keywords" content="final_project" />
<meta name="author" content="Zohaib Tasnim" />
<script type="text/javascript"
src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?
v=3.exp&sensor=true&libraries=places"></script>
<link href="style.css" type="text/css" rel="stylesheet" />
<!--to disable the enter key-->
<script type="text/javascript">
function stopRKey(evt) {
var evt = (evt) ? evt : ((event) ? event : null);
var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
if ((evt.keyCode == 13) && (node.type=="text")) {return false;}
}
document.onkeypress = stopRKey;
</script>
</head>
<body>
<div id="mapCanvas"> </div>
<div id="box">
<a id="btns"> welcome <?php echo($_SESSION['username']); ?></a>
<a id="btns" href="profile.html"> My Profile</a>
<a id="btns" href="login.php"> logout</a>
<p class="or">[OR]</p>
<div class="directionInputs">
<form action="address_insert.php" name="form2" method="post">
<p><label>A</label><input type="text" value="" name="loc_a"
id="dirSource" /></p>
<p><label>B</label><input type="text" value="" name="loc_b"
id="dirDestination" /></p>
<a href="#getDirections" id="getDirections">Get Directions</a>
<a href="#reset" id="paneReset">Reset</a>
<a id="btns"><input name="submit" class="btns" type="submit" value="Save
Address" /></a>
</form>
</div>
<div id="directionSteps">
<p class="msg">Direction Steps Will Render Here</p>
</div>
<!--<a href="#toggleBtn" id="paneToggle" class="out"><</a>-->
</div>
<script type="text/javascript" src="sample.js"></script>
</body>
</html>
and checklogin.php is
<?php
$host="localhost"; // Host name
$username="root"; // Mysql username
$password=""; // Mysql password
$db_name="map_my_way"; // 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
$username=$_POST['username'];
$password=$_POST['password'];
// To protect MySQL injection (more detail about MySQL injection)
$username = stripslashes($username);
$password = stripslashes($password);
$username = mysql_real_escape_string($username);
$password = mysql_real_escape_string($password);
$sql="SELECT * FROM $tbl_name WHERE username='$username' and password='$password'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $username and $password, table row must be 1 row
if($count==1){
// Register $username
$_SESSION['login'] = true;
$_SESSION['username'] = $username;
header("location:user_index.html");
}
else {
echo "Wrong Username or Password";
}
?>
