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php获取百度关键词查询结果总数

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PHP中文网Original
2016-05-25 17:10:32994browse

[PHP]代码     

<html>
<head>
<title>在线演示_php获取百度关键词查询结果总数</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="keywords" content="百度,baidu,查询结果">
<meta name="description" content="php获取百度关键词查询结果总数 by enenba.com">
</head>
<body>
<?php $k=isset($_POST[&#39;k&#39;])?$_POST[&#39;k&#39;]:&#39;&#39;; ?>
<form method="post" action="">
	查询关键词:
	<input type="text" name="k" size="50" value="<?php echo $k ?>">
	<input type="submit" value="提交">
</form>

<?php
/*
	获取百度关键词查询结果总数
	2012-7-26
	@param str $keyword 
	@param str 整型字符
 */
function getKeywordTotal($keyword) {
	$url = &#39;http://www.baidu.com/s?wd=&#39;.$keyword;
	$html = file_get_contents($url);
	$search = &#39;/<span class="nums"[^>]*?>[^<]*?([0-9,]*?)</i&#39;; //获取<span class="nums">中部分
	preg_match($search,$html,$match);
	$match = str_replace(&#39;,&#39;,&#39;&#39;,$match); //去逗号
	preg_match(&#39;/<span[^>]*>.*?(\d+)/&#39;,$match[0],$r);//得到最后的总数：
	return $r[1];
}
if($k==&#39;&#39;) {
	exit(&#39;请输入数据&#39;);
}else{
	echo &#39;共有&#39;.getKeywordTotal($k).&#39;个结果。&#39;;
}
?>
</body>
</html>

                   

                   

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