Get mail from gmail with php

<?php
error_reporting('E_ALL');
/* connect to gmail */
$hostname = '{imap.gmail.com:993/imap/ssl}INBOX';
//$hostname = '{imap.secureserver.net:993/imap/ssl}INBOX';
$username = 'EMIAL@gmail.com';
$password = 'PASSWORD';

/* try to connect */
$inbox = imap_open($hostname,$username,$password) or die('Cannot connect to Gmail: ' . imap_last_error());

//print_r($inbox);
//exit();
/* grab emails */
//$emails = imap_search($inbox,'ALL');
$emails = imap_search($inbox,'SUBJECT "new requirement"');

/* if emails are returned, cycle through each... */
if($emails) {

/* begin output var */
$output = '';

/* put the newest emails on top */
rsort($emails);

/* for every email... */
foreach($emails as $email_number) {

/* get information specific to this email */
$overview = imap_fetch_overview($inbox,$email_number,0);
$message = imap_fetchbody($inbox,$email_number,2);

/* output the email header information */
$output.= '<div class="toggler '.($overview[0]->seen ? 'read' : 'unread').'">';
$output.= '<span class="subject">'.$overview[0]->subject.'</span> ';
$output.= '<span class="from">'.$overview[0]->from.'</span>';
$output.= '<span class="date">on '.$overview[0]->date.'</span>';
$output.= '</div>';

/* output the email body */
$output.= '<div class="body">'.$message.'</div>';
}

echo $output;
}

/* close the connection */
imap_close($inbox);

?>