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解析百度搜索结果link？url=

PHP中文网Original: 2016-05-25 17:09:502946browse

php代码

<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>查询百度link?ulr=真实链接表单</title>
</head>

<body>
<?php
/*
	getrealurl 获取301、302重定向后的URL地址  by enenba.com
	@param str $url 查询
	$return str  定向后的url的真实url
 */
function getrealurl($url){
	$header = get_headers($url,1);
	if (strpos($header[0],&#39;301&#39;) || strpos($header[0],&#39;302&#39;)) {
		if(is_array($header[&#39;Location&#39;])) {
			return $header[&#39;Location&#39;][count($header[&#39;Location&#39;])-1];
		}else{
			return $header[&#39;Location&#39;];
		}
	}else {
		return $url;
	}
}
$input = &#39;<form method="get" action=""><input type="text" name="url" id="url" style="width:800px;" /><input type="submit" value="提交" /></form><body></html>&#39;;

$url = isset($_GET[&#39;url&#39;])?$_GET[&#39;url&#39;]:&#39;&#39;;
if(empty($url)) exit($input);
$urlreal = getrealurl($url);
echo &#39;真实的url为：&#39;.$urlreal;
$urlreal = ltrim($urlreal,&#39;http://&#39;);

$search = &#39;/ebac5573358cc3c0659257bfcf54([0-9a-f]+)/i&#39;;
preg_match($search,$url,$r);
$url_encode = $r[1];  unset($r);

echo &#39;<br/>密文部分为：&#39;.$url_encode.&#39;<br/>&#39;;

$urlreal_arr = str_split($urlreal);
$url_encode_arr = str_split($url_encode,2);

echo &#39;<br />&#39;;
echo $input;
?>

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