Read a Cookie in PHP

Read a cookie defensively

Cookies are client-controlled input. Check for the key and escape a value before putting it into HTML.

<?php
$value = $_COOKIE['Plus2netCookie'] ?? '';
if ($value !== '') {
    echo htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
}
?>

Current example first; the detailed tutorial examples below are retained for additional learning and comparison.