emlog判断文章有没有被百度收录的方法

<?php
//判断内容页是否百度收录,并且以博主和或者理员身份访问博客文章时自动向百度提交未收录的文章
function baidu($url){
 $url='http://www.baidu.com/s?wd='.$url;
 $curl=curl_init();
 curl_setopt($curl,CURLOPT_URL,$url);
 curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
 $rs=curl_exec($curl);
 curl_close($curl);
 if(!strpos($rs,'没有找到')){
     return 1;
   }
 else{
     return 0;
  }   
     }
  function checkbaidu($id){
  $url=Url::log($id);
  if(baidu($url)==1){
   echo "<a style=\"color:#8c8c8c;\" rel=\"external nofollow\" title=\"百度已收录\" target=\"_blank\" href=\"http://www.baidu.com/s?wd=$url\">百度已收录</a>";
  } else {
   if (ROLE == 'admin' || ROLE == 'writer') {
    $urls = array(
      $url,
  );
 // $api = 'http://data.zz.baidu.com/urls?site=www.caojiefeng.com&token=11111111111111111111';
   $api = 'http://data.zz.baidu.com/urls?site=www.caojiefeng.com&token=BbDeTv4ltRZoAknu';
  $ch = curl_init();
  $options =  array(
     CURLOPT_URL => $api,
     CURLOPT_POST => true,
     CURLOPT_RETURNTRANSFER => true,
     CURLOPT_POSTFIELDS => implode("\n", $urls),
     CURLOPT_HTTPHEADER => array('Content-Type: text/plain'),);
  curl_setopt_array($ch, $options);
  $result = curl_exec($ch);
   }
     echo "<a style=\"color:#8c8c8c;\" rel=\"external nofollow\" title=\"点击提交收录\" target=\"_blank\" href=\"http://zhanzhang.baidu.com/sitesubmit/index?sitename=$url\">百度未收录</a>";
  }
 }
?>

 <?php echo checkbaidu($logid); ?>