Programming in PHP - Week 6 - Day 11 - Sessions and Cookies

cookies.php

<?php

if(isset($_POST['submit'])){
    if(!empty($_POST['name'])){
        setcookie('yourName', htmlentities($_POST['name']));
        header("Location: cookies.php");
    }else {
        echo 'Please enter a name!<br />';
    }
}

if(!empty($_COOKIE['yourName'])){
    echo 'Welcome, ' . $_COOKIE['yourName'];
}else {
    echo 'Enter your name:';
}

?><br />
<form method="post">
    Name: <input type="text" name="name" />
    <input type="submit" name="submit" value="Submit" />
</form>

sessions.php

<?php
session_start();

if(isset($_POST['submit'])){
    if(isset($_POST['end'])){
        unset($_SESSION['yourName']);
        header("Location: sessions.php");
    }
    
    if(!empty($_POST['name'])){
        $_SESSION['yourName'] = htmlentities($_POST['name']);
    }else {
        echo 'Please enter a name!<br />';
    }
}

if(!empty($_SESSION['yourName'])){
    echo 'Welcome, ' . $_SESSION['yourName'];
}else {
    echo 'Enter your name:';
}

?><br />
<form method="post">
    Name: <input type="text" name="name" /><br />
    End session? <input type="checkbox" name="end" value="1" />
    <input type="submit" name="submit" value="Submit" />
</form>