Recover data on javascript form - php

Question

Lately, I've made changes on my javascript code, just a simple contact form and also using colorbox plugin too. It's up and running for 5 days. For the first 2 days I received emails from the form after that I've made changes on the code that causes not to received the forms data from user. Since then, I didn't receive any emails. Is there a way to still retrieve and recover the data send from the form?
if (isset($_POST['register-form'])) {
$_POST = array_map('htmlentities', $_POST);
if ($_POST['type'] == '1') {
$status = "Professional";
}
if ($_POST['type'] == '2') {
$status = "Student";
}
/** Make the mail **/
$headers = "from: noreply#sample.com\r\n";
$headers .= 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$subject = "Registration";
$mail = "<table border='0' width='100%' cellpadding='5' cellspacing='1'>
<tr>
<td witdth='15%'><strong>First Name</strong></td>
<td>{$_POST['first-name']}</td>
</tr>
<tr>
<td><strong>Last Name</strong></td>
<td>{$_POST['last-name']}</td>
</tr>
<tr>
<td><strong>Contact Number</strong></td>
<td>{$_POST['contact-number']}</td>
</tr>
<tr>
<td><strong>E-mail</strong></td>
<td>{$_POST['email']}</td>
</tr>
<tr>
<td><strong>Level</strong></td>
<td>{$status}</td>
</tr>
<tr>
<td><strong>Company/School</strong></td>
<td>{$_POST['company-name']}</td>
</tr>
</table>";
mail('sample91#gmail.com', $subject, $mail, $headers);
}