改了改之前那个很糙的XXX

将就着用X度去爬吧

<?php
echo "***************************************
";
echo "*   SubDomain Spider                  *
"; 
echo "*   Author:Debug0                     *
";
echo "***************************************

";
if($argc<3)
{
    echo "Usage:php $argv[0] Domain depth

";
    echo "Example:php $argv[0] qq.com 101
";
    die();
}
$domain=$argv[1];
$page=0;
$curl=curl_init(); 
$output="";   
while($page<=$argv[2])  
{ 
    $query="/s?wd=site%3A($domain)&pn=".$page;
    $page+=10;  //默认每页10条结果，所以翻页加10 
    $url="http://www.baidu.com".$query; 
    curl_setopt($curl, CURLOPT_URL, $url); 
    curl_setopt($curl,CURLOPT_RETURNTRANSFER,true); 
    $output.=curl_exec($curl); 
}
$regexp="/g">.*".$domain."//i";
$result=array(); 
preg_match_all($regexp, $output, $result); 
$result2=$result[0];
foreach($result2 as $k=>$v)
{
    $result2[$k]=trim($v,"g">");
    $pos=strpos($result2[$k],"/");
    $result2[$k]=substr($result2[$k],0,$pos);
}
$result2=array_unique($result2);
foreach ($result2 as $v) {
    echo $v."
";
}
$num=count($result2);
echo "
Total SubDomains: ".$num;
?>