it should need 7 Steps for this login-logout system, they are
Start.............
Here i am using mysql............
1 Step) create database and table
database name --> digitalworld
table name --> login
please create fields in login table: id, username, password
2 Step) connection.php
<?php
$conn=mysql_connect("localhost","root","") or die('can not connect with localhost');
$db =mysql_select_db("digitalworld") or die('can not connect with database');
?>
3 Step) index.php
<?php
session_start();
?>
<?php
@$mess=$_GET['value'];
if($mess)
{ ?>
<script>
alert('Wrong Credentials...try again');
</script>
<?php } ?>
<html>
<head>
<title>Digital World Freelancer</title>
</head>
<body>
<form method="post" name="login" action="login.php">
<label for="name" class="labelname"> Username </label>
<input type="text" name="username" id="userid" required="required" /><br />
<label for="name" class="labelname"> Password </label>
<input type="password" name="password" id="passid" required="required" /><br />
<input type="submit" name="submit" id="submit" value="Login" />
</form>
</body>
</html>
4 Step) login.php
<?php
include('connection.php');
session_start();
{
$user=mysql_real_escape_string($_POST['username']);
$pass=mysql_real_escape_string($_POST['password']);
$fetch=mysql_query("SELECT id FROM `login` WHERE
username='$user' and password='$pass'");
$count=mysql_num_rows($fetch);
if($count!="")
{
session_register("sessionusername");
$_SESSION['login_username']=$user;
header("Location:dashboard.php");
}
else
{
header('Location:index.php');
}
}
?>
5 Step) session.php
<?php
include('connection.php');
session_start();
$check=$_SESSION['login_username'];
$session=mysql_query("SELECT username FROM `login` WHERE username='$check' ");
$row=mysql_fetch_array($session);
$login_session=$row['username'];
if(!isset($login_session))
{
header("Location:index.php");
}
?>
6 Step) dashboard.php
<?php
include("session.php");
?>
<h3 align="center"> Hellow <?php echo $login_session; ?></h3>
<h2 align="center" >Welcome to login system</h2>
<h4 align="center"> click here to <a href="logout.php">LogOut</a> </h4>
7 Step) logout.php
<?php
session_start();
if(session_destroy())
{
header("Location: index.php");
}
?>
You can try this login and logout steps now.....
Start.............
Here i am using mysql............
1 Step) create database and table
database name --> digitalworld
table name --> login
please create fields in login table: id, username, password
2 Step) connection.php
<?php
$conn=mysql_connect("localhost","root","") or die('can not connect with localhost');
$db =mysql_select_db("digitalworld") or die('can not connect with database');
?>
3 Step) index.php
<?php
session_start();
?>
<?php
@$mess=$_GET['value'];
if($mess)
{ ?>
<script>
alert('Wrong Credentials...try again');
</script>
<?php } ?>
<html>
<head>
<title>Digital World Freelancer</title>
</head>
<body>
<form method="post" name="login" action="login.php">
<label for="name" class="labelname"> Username </label>
<input type="text" name="username" id="userid" required="required" /><br />
<label for="name" class="labelname"> Password </label>
<input type="password" name="password" id="passid" required="required" /><br />
<input type="submit" name="submit" id="submit" value="Login" />
</form>
</body>
</html>
4 Step) login.php
<?php
include('connection.php');
session_start();
{
$user=mysql_real_escape_string($_POST['username']);
$pass=mysql_real_escape_string($_POST['password']);
$fetch=mysql_query("SELECT id FROM `login` WHERE
username='$user' and password='$pass'");
$count=mysql_num_rows($fetch);
if($count!="")
{
session_register("sessionusername");
$_SESSION['login_username']=$user;
header("Location:dashboard.php");
}
else
{
header('Location:index.php');
}
}
?>
5 Step) session.php
<?php
include('connection.php');
session_start();
$check=$_SESSION['login_username'];
$session=mysql_query("SELECT username FROM `login` WHERE username='$check' ");
$row=mysql_fetch_array($session);
$login_session=$row['username'];
if(!isset($login_session))
{
header("Location:index.php");
}
?>
6 Step) dashboard.php
<?php
include("session.php");
?>
<h3 align="center"> Hellow <?php echo $login_session; ?></h3>
<h2 align="center" >Welcome to login system</h2>
<h4 align="center"> click here to <a href="logout.php">LogOut</a> </h4>
7 Step) logout.php
<?php
session_start();
if(session_destroy())
{
header("Location: index.php");
}
?>
You can try this login and logout steps now.....
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