<?php
// Calculo la url:
$url = $_SERVER['REQUEST_URI'];

$ch = curl_init('http://otroservidor.es/'.$url);
curl_setopt ($ch, CURLOPT_POST, 1);

foreach ($_POST as $P=>$p)
	$_POST[$P] = $P.'='.urlencode($p);

curl_setopt ($ch, CURLOPT_POSTFIELDS, implode('&', $_POST));

curl_exec ($ch);
curl_close ($ch);
?>