Why would you want to change it to php? And you can just echo out everything in there. It's just a matter of wrapping single-quotes around the entire output, putting echo in front of that giant string you created, and encasing that in <?php tags. e.g.
<?php
echo '<HTML>
<HEAD>
<TITLE>Pre-Survey</TITLE>
</HEAD>
<BODY>
<h1>Pre-survey</h1>
<FORM method="POST" action="form.php">
<table border="1">
<td>Requirement</td><td>Currently In Place</td><td>Required-Essential</td><td>Required-Recommended</td><tr>
<td>Requirements here</td>
<td><INPUT type="radio" name="myradio" value="Currently In Place" CHECKED></td>
<td><INPUT type="radio" name="myradio" value="Required Essential"></td>
<td><INPUT type="radio" name="myradio" value="Required-Recommended"></td>
</tr>
</table>
<p>
<INPUT type="submit" name="mybutton" value="Submit">
</FORM>
</BODY>
</HTML>';
?>
