PHP Script to get user's location

This is a quick little function that uses cURL to scrape a third party website to get information about a users's location. I've noticed that the response may not always be very accurate, so I wouldn't recommend this for anything where the location actually matters.

function location_information($ip_address) {
    #create an array of fields we will be searching for. This array is used later
    $fields = array ("Country","State/Province","City","Zip or postal code","Latitude","Longitude","Timezone","Local time","Hostname");
    #url of the site we'll be scraping
    $url = '' . urlencode($ip_address);
    #initialize curl
    $ch = curl_init();
    #set array of curl options
    $curl_opt = array(
                      CURLOPT_FOLLOWLOCATION => 1,
                      CURLOPT_HEADER     => 0,
                      CURLOPT_RETURNTRANSFER => 1,
                      CURLOPT_USERAGENT    => $_SERVER['HTTP_USER_AGENT'],
                      #send the user's useragent, just in case they start blocking requests from servers
                      CURLOPT_URL       => $url,
                      CURLOPT_TIMEOUT     => 1,
                      CURLOPT_REFERER     => 'http://' . $_SERVER['HTTP_HOST']
  #set the options
  curl_setopt_array($ch, $curl_opt);
  #run curl, get content back in a string
  $content = curl_exec($ch);
  if (!is_null($curl_info)) {
    $curl_info = curl_getinfo($ch);
  #close curl
  #loop through array of fields we're looking for, pull out corresponding values
  foreach($fields as $field) {
    if ( preg_match("{
  • $field : ([^<]*)
  • }i", $content, $regs) ) { $location[$field] = $regs[1]; } } #return array of location information return $location; }

    Usage is as follows: