PHP implements code for home page link query and friendly link check-PHP Tutorial-php.cn

PHP implements code for home page link query and friendly link check

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Release： 2019-01-30 13:20:14

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Copy code The code is as follows:

<?php 
/* 
* 网站首页超链接反查 友情链接查询 外链查询 
* web技术爱好者 lost63.com原创 QQ:35501547 
* 转载请注明出处 
*/ 
if($_GET[&#39;action&#39;]=="check"){ 
$domain=$_POST[&#39;domain&#39;]; 
//域名表单项为空,则获取地址栏参数 
if($domain==""){ 
$domain=$_GET[&#39;domain&#39;]; 
} 
//网址 
$url="http://".$domain; 
//读取网页,返回网页源文件内容 
function read_url($str){ 
$file=fopen($str,"r") or die($str.&#39;->远程网址读取失败! <a href="?next=&#39;.($_GET[&#39;next&#39;]+1).&#39;&action=check&domain=&#39;.$_GET[&#39;domain&#39;].&#39;">点击继续查询</a><br>&#39;); 
while(!feof($file)){ 
$result.=fgets($file,9999); 
} 
fclose($file); 
return $result; 
} 
//打开session 
session_start(); 
//如果$_SESSION[&#39;matches&#39;]没有赋值就设置它; 
if(!isset($_SESSION[&#39;matches&#39;])){ 
$result=read_url($url); 
preg_match_all(&#39;/<a(.*?)href="(http:\/\/.*?)"(.*?)>(.*?)<\/a>/i&#39;,$result,$matches); 
$num=count($matches[2]); 
for($i=0;$i<$num;$i++){ 
if(strpos($matches[2][$i],$domain)>0){ 
unset($matches[2][$i]); 
} 
} 
$_SESSION[&#39;matches&#39;]=$matches[2]; 
} 
//直接从session中取出包含网址数组; 
$matches[2]=$_SESSION[&#39;matches&#39;]; 
$n=count($matches[2]); 
$next=0; 
$next+=$_GET[&#39;next&#39;]; 
$result=read_url($matches[2][$next]); 
if(strpos($result,$domain)>0){ 
$value=$matches[2][$next].&#39; <font color=green>true</font><br>&#39;; 
}else{ 
$value=$matches[2][$next].&#39; <font color=red>false</font><br>&#39;; 
} 
$values=$_COOKIE[&#39;check_result&#39;].$value; 
setcookie("check_result",$values,time()+3600); 
echo $values; 
if($next==$n){ 
echo "扫描结束!"; 
}else{ 
echo &#39;<meta http-equiv="refresh" content="1;URL=?next=&#39;.($next+1).&#39;&action=check&domain=&#39;.$domain.&#39;" />&#39;; 
} 
}else{ 
//删除cookies 
setcookie("check_result","",time()-3600); 
echo &#39;<form name="form1" method="post" action="?action=check"> 
<input type="text" name="domain"> 
<input type="submit" name="Submit" value="提交"> 
<font color="red">*</font>输入域名 如:jb51.net 
</form>&#39;; 
} 
?>Copy after login