【PHP】如何使用imap协议接收邮件

<?php

$mailServer="mail.staff.sina.com.cn";

$mailLink="{mail.staff.sina.com.cn:995/pop3/ssl}INBOX";

$mailUser = &#39;zekai&#39;; 

$mailPass = &#39;password&#39;; 

$stream = @imap_open($mailLink,$mailUser,$mailPass); 

$totalrows = imap_num_msg($stream);

var_dump($totalrows);

for($i=$totalrows;$i>=$totalrows;$i--)
{
    $headers = @imap_header($stream, $i);
    $mail_header= imap_headerinfo($stream, $i);
    var_dump ($mail_header);die;
    $subject = $mail_header->subject;
    $subject=decode_mime($subject);
    echo $subject;die;
}
?>