[PHP]代码
<html>
<head>
<title>在线演示_php获取某网站的快照时间 http://www.php.cn/;/title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="keywords" content="百度,baidu,查询快照结果">
<meta name="description" content="php查询网站快照日期: by enenba.com">
</head>
<body>
<?php $k=isset($_POST['k'])?$_POST['k']:''; ?>
<form method="post" action="">
<h2>查询网站快照日期:</h2>
输入网址：<br />
http://www.php.cn/;input type="text" name="k" size="60" value="<?php echo $k ?>">
<input type="submit" value="提交">
</form>
<?php
/*
php获取某网站的快照时间 by enenba
2012-6-18
@param str $url 一级域名
@param str 时间格式
*/
function getKuaiZhao($text) {
$url = 'http://www.baidu.com/s?word='.$text;
$html = file_get_contents($url);
$text = str_replace('.','\.',addslashes($text));
$search = '/<b>'.$text.'<\/b>[^<]*((?:19|20)[0-9]{2}-(?:1[012]|[1-9])-(?:[12][0-9]|3[01]|[1-9]))/';
preg_match($search, $html, $r);
//highlight_string($search);
return $r[1];
}
if($k=='') {
echo('请输入url');
}else{
if($r = getKuaiZhao($k)) {
echo '快照：'.$r;
}else {
echo('无快照');
}
}
?>
</body>
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