Warning: file_get_contents(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/www/img.php on line 12

Warning: file_get_contents(http://sp.yulin.gov.cn/approve/images/br_down21.gif): failed to open stream: php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/www/img.php on line 12
无法获取图片.