Untitled

<?php

    $language = "en";

    $translations = array();
    $translations['nl'] = array(
        "course" => "Cursus"
    );
    $translations['en'] = array(
        "course" => "Course"
    );

    function translate($tag){
        global $translations;
        global $language;

        $setTranslations = $translations[$language];
        return $setTranslations[$tag];
    }
?>


<!doctype html>
<html lang="en">
    <head>
        <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">
        <title>Document</title>
    </head>
    <body>

        <h1><?= translate('course') ?></h1>

    </body>
</html>