PHP curl bot to update Facebook status

//
// change Facebook status with curl
// Thanks to Alste (curl stuff inspired by nexdot.net/blog)
function setFacebookStatus($status, $login_email, $login_pass, $debug=false) {
 //CURL stuff
 //This executes the login procedure
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php');
 curl_setopt($ch, CURLOPT_POSTFIELDS, 'email=' . urlencode($login_email) . '&pass=' . urlencode($login_pass) . '&login=' . urlencode("Log in"));
 curl_setopt($ch, CURLOPT_POST, 1);
 curl_setopt($ch, CURLOPT_HEADER, 0);
 //curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 curl_setopt($ch, CURLOPT_COOKIEJAR, "my_cookies.txt");
 curl_setopt($ch, CURLOPT_COOKIEFILE, "my_cookies.txt");
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 //make sure you put a popular web browser here (signature for your web browser can be retrieved with 'echo $_SERVER['HTTP_USER_AGENT'];'
 curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.12) Gecko/2009070611 Firefox/3.0.12");
 curl_exec($ch);

 //This executes the status update
 curl_setopt($ch, CURLOPT_POST, 0);
 curl_setopt($ch, CURLOPT_URL, 'http://m.facebook.com/home.php');
 $page = curl_exec($ch);

 //echo htmlspecialchars($page);

 curl_setopt($ch, CURLOPT_POST, 1);
 //this gets the post_form_id value
 preg_match("/input type=\"hidden\" name=\"post_form_id\" value=\"(.*?)\"/", $page, $form_id);
 preg_match("/input type=\"hidden\" name=\"fb_dtsg\" value=\"(.*?)\"/", $page, $fb_dtsg);
 preg_match("/input type=\"hidden\" name=\"charset_test\" value=\"(.*?)\"/", $page, $charset_test);
 preg_match("/input type=\"submit\" class=\"button\" name=\"update\" value=\"(.*?)\"/", $page, $update);

 //we'll also need the exact name of the form processor page
 //preg_match("/form action=\"(.*?)\"/", $page, $form_num);
 //sometimes doesn't work so we search the correct form action to use
 //since there could be more than one form in the page.
 preg_match_all("#<form([^>]*)>(.*)</form>#Ui", $page, $form_ar);
 for($i=0;$i<count($form_ar[0]);$i++)
  if(stristr($form_ar[0][$i],"post_form_id")) preg_match("/form action=\"(.*?)\"/", $page, $form_num);  

 $strpost = 'post_form_id=' . $form_id[1] . '&status=' . urlencode($status) . '&update=' . urlencode($update[1]) . '&charset_test=' . urlencode($charset_test[1]) . '&fb_dtsg=' . urlencode($fb_dtsg[1]);
 if($debug) {
  echo "Parameters sent: ".$strpost."<hr>";
 }
 curl_setopt($ch, CURLOPT_POSTFIELDS, $strpost );

 //set url to form processor page
 curl_setopt($ch, CURLOPT_URL, 'http://m.facebook.com' . $form_num[1]);
 curl_exec($ch);

 if ($debug) {
  //show information regarding the request
  print_r(curl_getinfo($ch));
  echo curl_errno($ch) . '-' . curl_error($ch);
  echo "<br><br>Your Facebook status seems to have been updated.";
 }
 //close the connection
 curl_close($ch);
}