用php获取百度快照、百度收录、百度热词，供大家参考。
1，获取百度收录
<?
/*
* 百度收录
* $s 为要查询的网站域名
* by www.jb200.com
*/
function baidu($s){
$baidu="http://www.baidu.com/s?wd=site%3A".$s;
$site=file_get_contents($baidu);
//$site=iconv("gb2312", "UTF-8", $site);
ereg("找到相关网页(.*)篇，", $site,$count);
$count=str_replace("找到相关网页","",$count);
$count=str_replace("篇，","",$count);
$count=str_replace("约","",$count);
$count=str_replace(",","",$count);
return $count[0];
}
echo baidu(www.jb200.com); //获取好主题在百度中的收录数量
?>
2，获取百度的热词
<?php
/**
* @return array 返回百度的热词数据(数组返回)
* @by www.jb200.com
*/
function getBaiduHotKeyWord()
{
$templateRss = file_get_contents('http://top.baidu.com/rss_xml.php?p=top10');
If (preg_match('/<table>(.*)</table>/is', $templateRss, $_description)) {
$templateRss = $_description [0];
$templateRss = str_replace("&", "&", $templateRss);
}
$templateRss = "<?xml version="1.0" encoding="GBK"?>" . $templateRss;
$xml = simplexml_load_String($templateRss);
foreach ($xml->tbody->tr as $temp) {
if (!empty ($temp->td->a)) {
$keyArray [] = trim(($temp->td->a));
}
}
return $keyArray;
}
print_r(getBaiduHotKeyWord());
?>
3，百度收录和百度快照时间
<?php
$domain = “http://www.jb200.com/article/10964.html/ *欲查询的域名*/
$site_url = ‘http://www.baidu.com/s?wd=site%3A’;
$all = $site_url.$domain; /*域名所有收录的网址*/
$today = $all.’&lm=1′; /*域名今日收录的网址*/
$utf_pattern = “/找到相关结果数(.*)个/”;
$kz_pattern = “/<span class=”g”>(.*)</span>/”; /*用以匹配快照日期的字符串*/
$times = “/d{4}-d{1,2}-d{1,2}/”; /*匹配快照日期的正则表达式，如:2013-8-4*/
$s0 = @file_get_contents($all); /*将site:www.jb200.com的网页置入$s0字符串中*/
$s1 = @file_get_contents($today);
preg_match($utf_pattern,$s0,$all_num); /*匹配”找到相关结果数*个”*/
preg_match($utf_pattern,$s1,$today_num);
preg_match($kz_pattern,$s0,$temp);
preg_match($times,$temp[0],$screenshot);
if($all_num[1] == “”)
$all_num[1] = 0;
if($today_num[1] == “”)
$today_num[1] = 0;
if($screenshot[0] == “”)
$screenshot[0] = “暂无快照”;
?>
<html>
<head>
<title>Test</title>
</head>
<body>
<table>
<tr>
<td>日期</td><td>百度收录</td><td>百度今日收录</td><td>百度快照日期</td>
</tr>
<tr>
<td><?php echo date(‘m月d日G时’);?> </td><td><?php echo $all_num[1]; ?></td><td><?php echo $today_num[1]; ?></td>
<td><?php echo $screenshot[0]; ?></td>
</tr>
</table>
<p>百度收录：<a href=http://www.jb200.com/article/9788.html”<?php echo $all; ?>” target=”_blank”><?php echo $all_num[1]; ?></a></p>
<p>百度今日收录：<a href=http://www.jb200.com/article/9788.html”<?php echo $today; ?>” target=”_blank”><?php echo $today_num[1]; ?></a>
</p>
<p>百度快照日期：<a href=http://www.jb200.com/article/9788.html”<?php echo $all; ?>”><?php echo $screenshot[0]; ?></a></p>
</body>
</html>
说明：
以上代码，仅供学习研究之用。
如果服务器不支持file_get_contents函数，则可以考虑换用curl操作，它更接近于真实用户访问。