<!-- inline styles! -->
<style type="text/css">
    body span.blah {
        background: #000;
        color: #fff;
    }
</style>
<body>
    <span class="blah" width="200" height="200">test code goes here</span>
</body>
<!-- inline php! -->
<?php
    $test = true;
    /**
     * test
     */
    function what($test) {
        return $test;
    }
?>
<!-- inline javascript! -->
<script type="text/javascript">
    function prettyCool() {
        doSomeJQueryOrWhatever();
    }
</script>
<article title="<?= $user->name ?>">test</article>