<?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($logid){
	$url=Url::log($logid);
	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>";
	}
}
?>

echo_log.php或page.php中调用：

<?php logurl($logid);?>