Probleme nach Umstellung auf php 5.5

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function htmlspecialchars_hotfix($text) {
 return htmlspecialchars($text,ENT_QUOTES | ENT_HTML401,'ISO-8859-1');;
}
function get_vars_old() {
 global $HTTP_COOKIE_VARS, $HTTP_POST_FILES, $HTTP_POST_VARS, $HTTP_GET_VARS, $HTTP_SERVER_VARS, $_REQUEST, $_COOKIE, $_POST, $_GET, $_SERVER, $_FILES;

 if(is_array($HTTP_COOKIE_VARS)) {
  while(list($key,$val)=each($HTTP_COOKIE_VARS)) {
   $_REQUEST[$key]=$val;
   $_COOKIE[$key]=$val;
  }
 }

 if(is_array($HTTP_POST_VARS)) {
  while(list($key,$val)=each($HTTP_POST_VARS)) {
   $_REQUEST[$key]=$val;
   $_POST[$key]=$val;
  }
 }

 if(is_array($HTTP_GET_VARS)) {
  while(list($key,$val)=each($HTTP_GET_VARS)) {
   $_REQUEST[$key]=$val;
   $_GET[$key]=$val;
  }
 }