I need to show the username of the person who is currently logged into the site and a logout form.
I currently have this code:
<?php session_start();
$myusername = $_SESSION['myusername'];
if(isset($_SESSION[$myusername]) ){}
echo $myusername;
?>
myusername is the form textbox and username is the MySQL table row.
<html>
<head>
<link rel="stylesheet" href="css/style.css" type="text/css" media="screen">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<header>
<div class="header">
<a href="#"><img class="logo" src="images/logo.png"></a>
<h1 class="subtitle">Internal Systems</h1>
<h4 class="slogin">Logged as: <?php session_start();
$myusername = $_SESSION['myusername'];
if(isset($myusername) ){
echo $myusername;
}?> | <a href="/intse/logout.php">Logout</a></h4>
</div>
</header>
Here is the checklogin file:
<?php
$host="localhost"; // Host name
$username="root"; // Mysql username
$password="xxxxxx"; // Mysql password
$db_name="intse"; // Database name
$tbl_name="users"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// Define $myusername and $mypassword
$myusername=$_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 *, username 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");
$_SESSION['myusername'] = '$myusername';
$_SESSION['mypassword'] = '$mypassword';
header("location:sindex.php");
}
else {
echo "Wrong Username or Password";
}
ob_end_flush();
?>
