Login Script

dennismonsewicz · December 6, 2007

Ok...

I have this login script:


<?php
//page title: checklogin.php
ob_start();
include "includes/db_login.php";

	// username and password sent from signup form
	$username = $_POST['username'];
	$password = $_POST['password'];
	$userid = $_POST['userid'];

	$sql="SELECT * FROM users WHERE username='$username' and password='$password' and userid='$userid'";
	$result=mysql_query($sql) or die(mysql_error());


	// 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, $password and redirect to file "login_success.php"
	session_register("username");
	session_register("password");
	header("location:../index.php");
	}
	else {
	include "includes/header.php";
	echo "<p>Wrong Username or Password</p>";
	include "includes/footer.php";
	}

ob_end_flush();

?>

The information being pulled from this script is on this page:

<?php include "includes/header.php"; 
//page title: login_index.php
?>
        
    <p>To login, please fill out the form below with your given username and password</p>
    
    <div id="loginform">
    
    	<form name="form1" method="post" action="checklogin.php">
        	<table border="0" cellpadding="0" cellspacing="0" align="center">
            	<tr>
                    <td>Username: </td>
                    <td><input name="username" type="text" id="username" /></td>
                </tr>
                <tr>
                  	 <td>Password: </td>
                     <td><input name="password" type="password" id="password" /></td>
                 </tr>
                 <tr>
                 	<td colspan="2"><input type="image" src="../images/login.gif" class="submit" alt="Submit Changes" value="Login" /></td>
                 </tr>
             </table>
        </form>
        
    </div>
    
<?php include "includes/footer.php"; ?>

Now here is my question:

I want to be able to transfer the username to the my header.php file which is an include for the main site. Right now I have a logout button. Well in parenthesis right beside the logout button I want to put the username that is logged in. How do I pass the username and rowid variable from the checklogin.php to header.php?

header.php looks like this:

<!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>Intranet</title>
<link href="/styles.css" rel="stylesheet" type="text/css" />
</head>

<body>

<?PHP session_start();

if(!session_is_registered(username)){
header("location:login/index.php")
}

?>

<a name="top"></a>

<div id="header">
    	<div id="logout" style="float: right; margin-right:50px; margin-top: 20px;"><a href="http://intranet.healthresources.net/login/logout.php">Logout? <?php echo "(" .  $username . ")" ?></a></div>
    	 ?>

adam291086 · December 6, 2007

when a user logs in, you can set that information into a session. Then call on that session in the header.php.

<?php
$_SESSION['username'] = $row['user_id'];
?>

user id come from a database search.

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Login Script

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