Récuperer le contenu d'une page web en php

johand@osiris: ~/src/CCM/php $ cat get_xwis_data.php 
<?php 
$URL="http://xwis.net/ra2/pl/goodbye/"; 
$XML_DATA = "data.xml"; 

function get_data($url, &$page_content, $xml_file) 
{ 
  $timeout = 10; 
  $proxy_host = 'http://192.168.0.8'; // host 
  $proxy_port = 3128; 
  $proxy_ident = ''; // username:password 

  $ch = curl_init($url); 

  curl_setopt($ch, CURLOPT_FRESH_CONNECT, true); 
  curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); 
  curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); 

  if (preg_match(''^[https:// https://'i',] $url)) 
    { 
      curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 
      curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); 
    } 

  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); 
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 



  // Activation de l'utilisation d'un serveur proxy 
  curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, false); 
  // Définition de l'adresse du proxy 
  curl_setopt($ch, CURLOPT_PROXY, $proxy_host); 
  curl_setopt($ch, CURLOPT_PROXYPORT, $proxy_port); 
  // Définition des identifiants si le proxy requiert une identification 
  if ($proxy_ident) 
    { 
      curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxy_ident); 
    } 

  curl_setopt($ch, CURLOPT_ENCODING , "gzip"); 
  $headers_enabled = 0; 
  curl_setopt($ch, CURLOPT_HEADER, $headers_enabled); 

  $page_content = curl_exec($ch); 
  curl_close($ch); 
  $handle = fopen($xml_file, "w"); 
  fwrite($handle, $page_content); 
  print("HERE"); 
  fclose($handle); 
} 

$page_content=""; 

if( file_exists($XML_DATA)) 
  { 
    $handle = fopen($XML_DATA, "r"); 
    if ( $handle ) 
      { 
 $page_content = fread($handle, filesize($XML_DATA)); 
      } 
  } 
  else 
    { 
      get_data($URL, $page_content, $XML_DATA); 
    } 

// preg_lace ( mixed $pattern , mixed $replacement , mixed $subject ) 
$page_content = preg_replace('!<!im' ,"\n<", $page_content); 
$page_content = preg_replace('!>!im' , ">\n", $page_content); 
echo $page_content; 
?>