我正在尝试使用 php 连接到 pop3-server。这是我的代码：
$pop3Server = 'mail.roller.ru';
$pop_conn = fsockopen($pop3Server, 110, $errno, $errstr, 10);
print fgets($pop_conn, 1024);
Warning: fsockopen() [function.fsockopen]: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /home/ockonal/public_html/mail_parser.php on line 45
Warning: fsockopen() [function.fsockopen]: unable to connect to mail.roller.ru:110 (php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution) in /home/ockonal/public_html/mail_parser.php on line 45
Warning: fgets() expects parameter 1 to be resource, boolean given in /home/ockonal/public_html/mail_parser.php on line 46
怎么了？我确定在 pop3-server 地址。它不打印任何东西。