道具中心道具列表空白

有的道具上传后正常有的上传后，后台的道具列表就会空白，不知道什么情况

class magic_money {
var $version = '1.0';
var $name = '人气药丸';
var $description = '人气药丸可增加人气20点';
var $price = '10';
var $weight = '10';
var $useevent = 1;
var $copyright = '<a  target="_blank">天才魔术论坛</a>';
var $magic = array();
var $parameters = array();
function getsetting(&$magic) {
}
function setsetting(&$magicnew, &$parameters) {
}
function usesubmit() {
  global $_G;
  $getmoney = 20;
  $_G['setting']['creditstransextra'][3] = 8;
  updatemembercount($_G['uid'], array($_G['setting']['creditstransextra'][3] => $getmoney), 1, 'MRC', $this->magic['magicid']);
  usemagic($this->magic['magicid'], $this->magic['num']);
  updatemagiclog($this->magic['magicid'], '2', '1', '0', 0, 'uid', $_G['uid']);
  showmessage('magics_credit_message', '', array('credit' => $_G['setting']['extcredits'][$_G['setting']['creditstransextra'][3]]['title'].' '.$getmoney.' '.$_G['setting']['extcredits'][$_G['setting']['creditstransextra'][3]]['unit']), array('alert' => 'right', 'showdialog' => 1));
}
function show() {
  magicshowtips('使用后可增加人气20点');
}
function buy() {
}
}

没人会么？@下砂