PHP cookie operation implements code login

The first file login_frm.php is the login window
code

Copy the code The code is as follows:

User:

The second file login.php is to handle login

Copy code The code is as follows:

if($_POST['username'] = 'admin')
{
setcookie('haha','gogo');
header( "location:index.php");
}
?>

Third file index.php and see the effect again

Copy the code The code is as follows:

if( $_COOKIE['haha'] == 'gogogo')
{
echo $_COOKIE['haha'];
echo 'You have set a cookie';
}
else
{
echo 'You have not set a cookie';
}
?>

For more basic information, please refer to PHP Cookies

The above introduces the operation of php cookie to realize code login, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.