curl

<?php

$url = 'http://checkip.instantproxies.com/';
$proxy = '163.172.191.88:3128';  // <-- set your proxy
$content = requestUrl($url, $proxy);
print $content;
print 'Done requesting '.$url.'...';

function requestUrl($url, $proxy = NULL) {
 $curl = curl_init();
 curl_setopt($curl, CURLOPT_URL, $url);
 if ($proxy != NULL) {
 curl_setopt($curl, CURLOPT_PROXY, $proxy);
 }
 curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
 curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
 curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
 $contents = curl_exec($curl);
 curl_close($curl);
 return $contents;
}

?>