tried but do not work
<?php
session_start();
if(isset($_POST['submit']))
{
$con = mysql_connect("localhost","root","");
$db = mysql_select_db('cms',$con);
$email=$_POST['email'];
$name=$_POST['name'];
$subject=$_POST['subject'];
$designation=$_POST['designation'];
$num=$_POST['#'];
//$add_type=$_POST['add_type'];
// echo $q= "select * from contactus where email='".$email."' and password='".$password."' " or die(mysql_error());
$sql = mysql_query($q);
$q= "select * from contactus " or die(mysql_error());
$sql = mysql_query("select * from contactus");
//$res=mysql_fetch_object($sql);
$rows = mysql_num_rows($sql);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>sessions</title>
<link type="text/css" rel="stylesheet" href="styles.css" />
</head>
<body style="margin-top:0px; margin-left: 0px; background-color:#E6E6FA">
<div id="content" style="height:130px; width:1365px; float:center; background-color:#BA55D3" > <img src="images/image.png">
<ul id="menu">
<div id="header2">
<li><a href="home.php"><b>Home</b><a></li>
<li><a href="login.php"><b>Login</b><a></li>
<li><a href="signup.php"><b>Signup</b><a></li>
<li><a href="about.php"><b>About</b><a></li>
<li><a href="contact us.php"><b>Contact Us</b></a></li>
</ul>
</div>
</div>
<div align="center">
<form method="post" action="">
<h2>DETAIL OF OFFICERS OF CS&&IT DEPARTMENT</h2></div>
</br></br>
<table id="abc" border="1" align="center" bgcolor="white" style="width:60%">
<?php
while($rows=mysql_fetch_array($sql)){
?>
<?php echo $row[0]; ?><br />
<?php echo $row[1]; ?><br />
<?php echo $row[2]; ?><br />
<?php } ?> </div>
</table>
</form>
</html>