非插件实现Emlog内容页判断百度收录与否，是否被百度收录

<?php //判断内容页是否百度收录 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 logurl($id){$url=Url::log($id); if(baidu($url)==1){echo "百度已收录"; }else{echo "<a style=\"color:red;\" 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>";}} ?>