All of you know the simple login validation concepts in php. Otherwise visit login validation using php. Now see about login form with remember me concept in php. You can remember the user using cookies concept in php.
When you click the remember me check box, your name and password is stored in cookie. Though you signout and close the browser, you can login again while open page in browser. Your name kept by cookie until expire the time or you clear the cache in your browser.
Consider the following example. You have 3 php pages such as login.php, welcome.php and signout.php.
where,
if(isset($_COOKIE['name']) && isset($_COOKIE['pwd'])) {} means if the user values in cookies, then the user can login directly without login validation in php.
if(isset($_POST['remember'])){
setcookie('name',$name,time() + (60*60*24*1));
setcookie('pwd',$pwd,time() + (60*60*24*1));
}
which means, if the user click the remember me check box, then you have to store them in cookie. If you don't know about cookies in php, then visit Cookies in php.
When you run the login.php fille, you'll get output like this:
welcome.php:
where,
if(isset($_COOKIE['name'])){}else{} means if the values in cookie, then return name from cookie. Otherwise name return from session.
Now you enter username and password 'guru' and 'guru' without select the remember check box, you will navigate to 'welcome.php' page and get output like this:
welcome: guru
Signout
If it is wrong, then you can't login.
When you click the signout.php, it destroy the session and return back to login page. The php script for signout page:
signout.php:
You select the remember me check box while login. Then you navigate to welcome.php page. Now you click the signout on welcome.php page, you can't return back to login page. Because the concept is, when you signout the page, you return back to login.php page, where you wrote the php script as like as:
if(isset($_COOKIE['name']) && isset($_COOKIE['pwd'])) {}
It means, if values in cookie, you can login again. Now you comes to login page and again login and navigates to welcome page because your values in cookies.So you are in welcome page until the cookie is expired.
Related Post:
Create Registration form using PHP and MySQL
Simple login form validation using php and mysql
Forgot password to mail in login form validation using PHP and Mysql
When you click the remember me check box, your name and password is stored in cookie. Though you signout and close the browser, you can login again while open page in browser. Your name kept by cookie until expire the time or you clear the cache in your browser.
Remember me in login form using php:
Consider the following example. You have 3 php pages such as login.php, welcome.php and signout.php.
login.php:
<html>
<head>
<style type="text/css">
input{
border:1px solid olive;
border-radius:5px;
}
h1{
color:darkgreen;
font-size:22px;
text-align:center;
}
span{
color:lightgreen;
}
</style>
</head>
<body>
<h1>Login<h1>
<form action='#' method='post'>
<table cellspacing='5' align='center'>
<tr><td>User name:</td><td><input type='text' name='name'/></td></tr>
<tr><td>Password:</td><td><input type='password' name='pwd'/></td></tr>
<tr><td></td><td><input type='checkbox' name='remember' /> <span>Remember me</span></td></tr>
<tr><td></td><td><input type='submit' name='submit' value='Submit'/></td></tr>
</table>
</form>
<?php
session_start();
//your values are stored in cookies, then you can login without validate
if(isset($_COOKIE['name']) && isset($_COOKIE['pwd']))
{
header('location:welcome.php');
}
// login validation in php
if(isset($_POST['submit']))
{
mysql_connect('localhost','root','') or die(mysql_error());
mysql_select_db('new') or die(mysql_error());
$name=$_POST['name'];
$pwd=$_POST['pwd'];
if($name!=''&&$pwd!='')
{
$query=mysql_query("select * from login where name='".$name."' and password='".$pwd."' ");
$res=mysql_fetch_row($query);
if($res)
{
if(isset($_POST['remember']))
{
setcookie('name',$name, time() + (60*60*24*1));
setcookie('pwd',$pwd, time() + (60*60*24*1));
}
$_SESSION['name']=$name;
header('location:welcome.php');
}
else
{
echo'You entered username or password is incorrect';
}
}
else
{
echo'Enter both username and password';
}
}
?>
</body>
</html>
<head>
<style type="text/css">
input{
border:1px solid olive;
border-radius:5px;
}
h1{
color:darkgreen;
font-size:22px;
text-align:center;
}
span{
color:lightgreen;
}
</style>
</head>
<body>
<h1>Login<h1>
<form action='#' method='post'>
<table cellspacing='5' align='center'>
<tr><td>User name:</td><td><input type='text' name='name'/></td></tr>
<tr><td>Password:</td><td><input type='password' name='pwd'/></td></tr>
<tr><td></td><td><input type='checkbox' name='remember' /> <span>Remember me</span></td></tr>
<tr><td></td><td><input type='submit' name='submit' value='Submit'/></td></tr>
</table>
</form>
<?php
session_start();
//your values are stored in cookies, then you can login without validate
if(isset($_COOKIE['name']) && isset($_COOKIE['pwd']))
{
header('location:welcome.php');
}
// login validation in php
if(isset($_POST['submit']))
{
mysql_connect('localhost','root','') or die(mysql_error());
mysql_select_db('new') or die(mysql_error());
$name=$_POST['name'];
$pwd=$_POST['pwd'];
if($name!=''&&$pwd!='')
{
$query=mysql_query("select * from login where name='".$name."' and password='".$pwd."' ");
$res=mysql_fetch_row($query);
if($res)
{
if(isset($_POST['remember']))
{
setcookie('name',$name, time() + (60*60*24*1));
setcookie('pwd',$pwd, time() + (60*60*24*1));
}
$_SESSION['name']=$name;
header('location:welcome.php');
}
else
{
echo'You entered username or password is incorrect';
}
}
else
{
echo'Enter both username and password';
}
}
?>
</body>
</html>
where,
if(isset($_COOKIE['name']) && isset($_COOKIE['pwd'])) {} means if the user values in cookies, then the user can login directly without login validation in php.
if(isset($_POST['remember'])){
setcookie('name',$name,time() + (60*60*24*1));
setcookie('pwd',$pwd,time() + (60*60*24*1));
}
which means, if the user click the remember me check box, then you have to store them in cookie. If you don't know about cookies in php, then visit Cookies in php.
When you run the login.php fille, you'll get output like this:
welcome.php:
<?php
session_start();
if(isset($_COOKIE['name']))
{
echo 'Welcome: '. $_COOKIE['name'].'<br>';
}
else
{
echo 'Welcome: '. $_SESSION['name'].'<br>';
}
echo'<a href="signout.php">Singout</a>';
?>
session_start();
if(isset($_COOKIE['name']))
{
echo 'Welcome: '. $_COOKIE['name'].'<br>';
}
else
{
echo 'Welcome: '. $_SESSION['name'].'<br>';
}
echo'<a href="signout.php">Singout</a>';
?>
where,
if(isset($_COOKIE['name'])){}else{} means if the values in cookie, then return name from cookie. Otherwise name return from session.
welcome: guru
Signout
If it is wrong, then you can't login.
Signout in php:
signout.php:
<?php
session_start();
session_destroy();
header('location:login.php');
?>
session_start();
session_destroy();
header('location:login.php');
?>
You select the remember me check box while login. Then you navigate to welcome.php page. Now you click the signout on welcome.php page, you can't return back to login page. Because the concept is, when you signout the page, you return back to login.php page, where you wrote the php script as like as:
if(isset($_COOKIE['name']) && isset($_COOKIE['pwd'])) {}
It means, if values in cookie, you can login again. Now you comes to login page and again login and navigates to welcome page because your values in cookies.So you are in welcome page until the cookie is expired.
Related Post:
Create Registration form using PHP and MySQL
Simple login form validation using php and mysql
Forgot password to mail in login form validation using PHP and Mysql
