id/views/partials/head.php

<meta charset="UTF-8">
<meta name="viewport"
      content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script src="https://cdn.byecorps.com/global/fonts/fontawesome/js/all.min.js" defer></script>
<link rel="stylesheet" href="/styles/base.css">

<?php
if (isset($page_title)) {
    echo '<title>' . $page_title . '</title>';
}
?>