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php获取网站百度快照日期的方法_PHP

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Release: 2016-05-30 08:47:31
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本文实例讲述了php获取网站百度快照日期的方法。分享给大家供大家参考。具体如下:

<html>
<head>
<title>在线演示_php获取某网站的快照时间</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: ">
</head>
<body>
<&#63;php $k=isset($_POST['k'])&#63;$_POST['k']:''; &#63;>
<form method="post" action="">
  <h2>查询网站快照日期:</h2>
  输入网址:<br />
  http://<input type="text" name="k" size="60" value="<&#63;php echo $k &#63;>">
  <input type="submit" value="提交">
</form>
<&#63;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) {
  $url = 'http://www.baidu.com/s&#63;word='.$text;
  $html = file_get_contents($url);
  $text = str_replace('.','\.',addslashes($text));
  $search = '/<b>'.$text.'<\/b>[^<]*((&#63;:19|20)[0-9]{2}-(&#63;:1[012]|[1-9])-(&#63;:[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');
  }
}
&#63;>
</body>
</html>
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希望本文所述对大家的php程序设计有所帮助。

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