welcome back to shortlearner.com , In this tutorial we will see how to make a login form with remember me feature. In this example we are using PHP cookies for preserving user login and password.
PHP Login Form
This code shows login form with PHP code to pre-populate user login and passsword. this form has a remember me check box. if it is set then the login details entered by the user will preserved for future login attempts.

Index.php

Also Read :
PHP Login Script With Remember me.
Change password using javascript, php and mysqli.
Password and Confirm Password Validation Using JavaScript
Check Email is Already Registered in Database using Ajax and JavaScript.
How to hide extension of html and php file.?

<?php
session_start();
if(!empty($_POST["login"])) {
	$conn = mysqli_connect("localhost", "root", "psw", "dbname");
	$sql = "Select * from user where email = '" . $_POST["email"] . "' and password = '" . ($_POST["password"]) . "'";
	$result = mysqli_query($conn,$sql);
	$user = mysqli_fetch_array($result);
	if($user) {
			$_SESSION["id"]		   = $user["id"];
			
			if(!empty($_POST["remember"])) {
				setcookie ("member_login",$_POST["email"],time()+ (10 * 365 * 24 * 60 * 60));
				setcookie ("password",$_POST["password"],time()+ (10 * 365 * 24 * 60 * 60));
			} else {
				if(isset($_COOKIE["member_login"])) {
					setcookie ("member_login","");
				}
				if(isset($_COOKIE["password"])) {
					setcookie ("password","");
				}
			}
	} else {
		$message = "Invalid Login";
	}
}
?>	
<style>
	#frmLogin {
		padding: 20px 60px;
		background: #B6E0FF;
		color: #555;
		display: inline-block;		
		border-radius: 4px;
	}
	.field-group {
		margin-top:15px;
	}
	.input-field {
		padding: 8px;
		width: 200px;
		border: #A3C3E7 1px solid;
		border-radius: 4px;
	}
	.form-submit-button {
		background: #65C370;
		border: 0;
		padding: 8px 20px;
		border-radius: 4px;
		color: #FFF;
		text-transform: uppercase;
	}
	.member-dashboard {
		padding: 40px;
		background: #D2EDD5;
		color: #555;
		border-radius: 4px;
		display: inline-block;
	}
	.member-dashboard a {
		color: #09F;
		text-decoration:none;
	}
	.error-message {
		text-align:center;
		color:#FF0000;
	}
</style>

<?php if(empty($_SESSION["id"])) { ?>
<form action="" method="post" id="frmLogin">
	<div class="error-message"><?php if(isset($message)) { echo $message; } ?></div>	
	<div class="field-group">
		<div><label for="login">Username</label></div>
		<div><input name="email" type="text" value="<?php if(isset($_COOKIE["member_login"])) { echo $_COOKIE["member_login"]; } ?>" class="input-field">
	</div>
	<div class="field-group">
		<div><label for="password">Password</label></div>
		<div><input name="password" type="password" value="<?php if(isset($_COOKIE["password"])) { echo $_COOKIE["password"]; } ?>" class="input-field"> 
	</div>
	<div class="field-group">
		<div><input type="checkbox" name="remember" id="remember" <?php if(isset($_COOKIE["member_login"])) { ?> checked <?php } ?> />
		<label for="remember-me">Remember me</label>
	</div>
	<div class="field-group">
		<div><input type="submit" name="login" value="Login" class="form-submit-button"></span></div>
	</div>       
</form>
<?php } else { ?>
<div class="member-dashboard">You have Successfully logged in!. <a href="logout.php">Logout</a></div>
<?php } ?>

Logout.php

<?php
session_start();
$_SESSION["member_id"] = "";
session_destroy();
header("Location: ./");
?>