<?php
function _sendPingBack($from,$to,$pingback){
$xml = '<?xml version="1.0"?><methodCall><methodName>pingback.ping</methodName><params>'.
'<param><value><string>'.$from.'</string></value></param>'.
'<param><value><string>'.$to.'</string></value></param>'.
'</params></methodCall>';
$rq = curl_init();
curl_setopt($rq, CURLOPT_URL, $pingback);
curl_setopt($rq, CURLOPT_POST, 1);
curl_setopt($rq, CURLOPT_POSTFIELDS, $xml);
$algo=@curl_exec($rq);
curl_close($rq);
}
?>