php代码匹配某个网站及关键词在百度的搜索排名
<?php function s($keyword,$url,$page = 1){ static $px = 0; $rsState = false; $enKeyword = urlencode($keyword); $firstRow = ($page - 1) * 10; if($page > 10){ die('10页之内没有该网站排名..end'); } $contents = file_get_contents("http://www.baidu.com/s?wd=$enKeyword&&pn=$firstRow"); preg_match_all('/<table [^>]*?class="result"[^>]*>[sS]*?< /table>/i',$contents,$rs); foreach($rs[0] as $k=>$v){ $px++; if(strstr($v,$url)){ $rsState = true; preg_match_all('/<h3 [sS]*?(<a[sS]*?</a>)/',$v,$rs_t); echo '当前 "' . $url . '" 在百度关键字 "' . $keyword . '" 中的排名为：' . $px; echo '<br />'; echo '第' . $page . '页;第' . ++$k . "个<a target='_blank' href='http://www.baidu.com/s?wd=$enKeyword&&pn=$firstRow'>进入百度</a>"; echo '<br />'; echo $rs_t[1][0]; break; } } unset($contents); if($rsState === false){ s($keyword, $url,++$page); } } if(isset($_POST['submit'])){ $time = explode(' ',microtime()); $start = $time[0] + $time[1]; $url = $_POST['url']; if( count(explode('.',$url)) < = 2){ $url = ltrim($url,'http://'); $url = 'www.' . $url; } s($_POST['keyword'],$url); $endtime = explode(' ',microtime()); $end = $endtime[0] + $endtime[1]; echo '<hr>'; echo '程序运行时间: '; echo $end - $start; die(); } ?> < !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gbk" /> <title>抓取排名</title> </head> <body> <form action="" method="post"> <ul> <li> <span>关键字：</span><input type="text" name="keyword"/> </li> <li> <span>url地址：</span><input type="text" name="url"/> </li> <li> <input type="submit" name="submit" value="搜索"/> </li> </ul> </form> </body> </html> </h3></table>
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