Untitled

<?php
if(!(isset($_GET['first'])) {
die("<h1>FAIL</h1>");
}
if(!(isset($_GET['last'])) {
die("<h1>FAIL</h1>");
}
if(!(isset($_GET['id'])) {
die("<h1>FAIL</h1>");
}
if(!(isset($_GET['salary'])) {
die("<h1>FAIL</h1>");
}
$request = $_GET;
?>
<html>
<body>
<?php
echo <<<EOD
Hello ${request['first']} ${request['last']}.<br />
Your Identification Number is ${request['id']},
and you make \$${request['salary']}.
EOD;
?>
</body>
</html>