方法二 这个方法需要加载curl扩展
<?php
// create a new curl resource
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_PROXY, "代理服务器地址:端口");
curl_setopt($ch, CURLOPT_URL, "http://www.phpx.com/happy/frm4.html");
curl_setopt($ch, CURLOPT_HEADER, 0);
// grab URL and pass it to the browser
curl_exec($ch);
echo curl_error ($ch);
// close curl resource, and free up system resources
curl_close($ch);
?>