Returns array of bodies of UNSEEN email message

mbox_get_unseen_messages.php

<?php

/**
 * Returns array of bodies of UNSEEN email message
 * @param mixed $mbox array of mailbox, username and password OR mailbox opened with imap_open();
 * @param string $sender optional: get only messages from $sender email address
 */
function mbox_get_unseen_messages($mbox, $sender = NULL)
{
	// Email bodies
	$bodies = array();

        // Connect if not already a connecting we got passed
	if(is_array($mbox)
	{
		list($mailbox, $username, $password) = $mbox
		$mbox = imap_open($mailbox,$username, $password);
	}

	// Loop every message which havn't been read yet
	foreach(imap_search($mbox, 'UNSEEN') as $message_id)
	{
		// Fetch message header
		$header = imap_header($mbox, $message_id);

		// Check that the message is from the expected sender
		// however it is very easy to spoof tho :-)
		if(!is_null($sender) AND $header->fromaddress !== $sender))
		{
			continue;
		}

		// Fetch the message body
		$bodies[] = imap_fetchbody($mbox, $message_id, 1);
	}

        // Close the connecting
        imap_close($mbox);

	return $bodies;
}