PHP代碼——Curl實現網頁代理proxy

<?php$requestUrl = 'ip138.com';$ch = curl_init();$timeout = 5;curl_setopt($ch, CURLOPT_URL, $requestUrl);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC); //代理認證模式curl_setopt($ch, CURLOPT_PROXY, "112.65.219.72"); //Proxy 伺服器地址curl_setopt($ch, CURLOPT_PROXYPORT, 80); //Proxy 伺服器連接埠//curl_setopt($ch, CURLOPT_PROXYUSERPWD, ":"); //http代理認證帳號，username:password的格式curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP); //使用http代理模式$file_contents = curl_exec($ch);curl_close($ch);echo $file_contents;?>

此段代碼是使用了curl實現了網頁代理的功能，這是curl類庫內建的代理功能，不做過多解釋，需要提醒的是，curl類庫一般需要自己更改php.ini才能實現的