search
HomeBackend DevelopmentPHP Tutorial用PHP查询域名状态whois的类_PHP

WHOIS


class SearchDomain
{
        var $domain="";
        function SetDomain($udomain)
        {
                $this->domain = $udomain;
        }
        //
        // 获取whois并分析域名状态
        // ok 未被注册
        // 非空值 过期时间
        // 空值 未知
        //
        function GetInfo()
        {
                /*
                $dinfo = trim($this->GetWhois());
                if($dinfo=="") return "";
                if(eregi("no match",$dinfo)) return "ok";
        //return $rs;
        */
        $wl = "";
                $w_server = $this->GetServer();
                if($w_server=="") return "";
                $fp = fsockopen($w_server, 43, $errno, $errstr, 30);
                if(!$fp)
                {
                        echo $errstr;
                        return "";
                }
                  $out = $this->domain."\r\n";
              $out .= "Connection: Close\r\n\r\n";
              fputs($fp, $out);
              while (!feof($fp))
              {
                $wl = fgets($fp, 255);
                if(eregi("no match",$wl))
                {
                        fclose($fp);
                        return "ok";
                }
                if(eregi("Expiration Date",$wl))
                {
                        $lines = split(":",$wl);
                        $t = trim($lines[1]);
                        $ts = split(" ",$t);
                        $t = $ts[0];
                        if(ereg("[^0-9-]",$t))
                        {
                                $ts = split("-",$t);
                                $t = $ts[2]."-".$this->MonthToNum($ts[1])."-".$ts[0];
                        }
                        fclose($fp);
                        return $t;
                }
              }
              fclose($fp);
              return "";
          }
        //
        //获得域名的整个whois信息
        //
        function GetWhois()
        {
                $wh = "";
                $w_server = $this->GetServer();
                if($w_server=="") return "";
                $fp = fsockopen($w_server, 43, $errno, $errstr, 30);
                if(!$fp)
                {
                        echo $errstr;
                        return "";
                }
                  $out = $this->domain."\r\n";
              $out .= "Connection: Close\r\n\r\n";
              fputs($fp, $out);
              while (!feof($fp))
              {
                $wh .= nl2br(fgets($fp, 255));
              }
              fclose($fp);
              return $wh;
          }
          //
          //输出当前域名的状态信息
          //
          function PrintSta()
          {
                  $rs = $this->GetInfo();
                  if($rs=="ok") echo $this->domain." 未注册!
\r\n";
                  else if($rs=="") echo "无法查询 ".$this->domain." 状态!
\r\n";
                  else echo $this->domain." 已注册,到期时间:$rs
\r\n";
          }
          //
          //获得 whois 查询服务器
          //
          function GetServer()
          {
                  $udomain=substr($this->domain,-3);
                  switch($udomain)
                  {
                    case "com":
                              $w_server="whois.internic.net";
                              break;
                    case "net":
                              $w_server="whois.internic.net";
                              break;
                        case "org":
                              $w_server="whois.pir.org";
                                break;
                    case "nfo":
                              $w_server="whois.afilias.info";
                              break;
                    case "biz":
                              $w_server="whois.biz";
                              break;
                    case ".cc":
                              $w_server="whois.nic.cc";
                              break;
                    case "edu":
                              $w_server="whois.educause.net";
                              break;
                    case "gov":
                              $w_server="whois.nic.gov";
                              break;
                    case ".cn":
                              $w_server="whois.cnnic.net.cn";
                              break;
                    default:
                                $w_server="";
                  }
                  return $w_server;
        }
        //
        //英语的月份转为数字
        //
        function MonthToNum($m)
        {
                $m = strtolower($m);
                for($i=1;$i                {
                        $tt = mktime(0,0,0,$i+1,0,2005);
                        if($m==strtolower(strftime("%b",$tt)))
                        {
                                if($i>9) return $i-1;
                                else return "0".$i-1;
                        }
                }
        }
}


$sd = new SearchDomain();
$sd->SetDomain("job-sky.com");

//查询域名是否被注册,等价于 $sd->PrintSta();
$rs = $sd->GetInfo();
if($rs=="ok") echo $sd->domain." 未注册!
\r\n";
else if($rs=="") echo "无法查询 ".$sd->domain." 状态!
\r\n";
else echo $sd->domain." 已注册,到期时间:$rs
\r\n";

//获得域名的详细whois信息
//echo $sd->GetWhois();

?>
 
阅读全文  |  PHP专区  |  评论(0)  |  浏览次数: 0
 
 
 
如何屏蔽掉phpinfo()函数
Submitted by on 2005, May 11, 10:10 AM

在 php.ini 配置文件里面有这个选项

disable_functions = ; This directive allows you to disable certain
; functions for security reasons. It receives
; a comma separated list of function names.
; This directive is *NOT* affected by whether
; Safe Mode is turned on or off.

写成
disble_function = phpinfo

 
阅读全文  |  PHP专区  |  评论(0)  |  浏览次数: 0
 
 
 
几点提高php序运行效率的方法
Submitted by on 2005, May 11, 10:07 AM
1、用i+=1代替i=i+1。符合c/c++的习惯,效率还高。
2、尽可能的使用PHP内部函数。自己编写函数之前要详细查阅手册,看有没有相关的函数,否则费力不讨好。
3、能使用单引号字符串尽量使用单引号字符串。单引号字符串的效率要高于双引号字符串。
4、用foreach代替while遍历数组。遍历数组时foreach的效率明显高于while循环,而且不需要调用reset函数。两种遍历方法如下:
reset ($arr);
while (list($key, $value) = each ($arr)) {
echo "Key: $key; Value: $value
n";
}
foreach ($arr as $key => $value) {
echo "Key: $key; Value: $value
n";
}
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What data can be stored in a PHP session?What data can be stored in a PHP session?May 02, 2025 am 12:17 AM

PHPsessionscanstorestrings,numbers,arrays,andobjects.1.Strings:textdatalikeusernames.2.Numbers:integersorfloatsforcounters.3.Arrays:listslikeshoppingcarts.4.Objects:complexstructuresthatareserialized.

How do you start a PHP session?How do you start a PHP session?May 02, 2025 am 12:16 AM

TostartaPHPsession,usesession_start()atthescript'sbeginning.1)Placeitbeforeanyoutputtosetthesessioncookie.2)Usesessionsforuserdatalikeloginstatusorshoppingcarts.3)RegeneratesessionIDstopreventfixationattacks.4)Considerusingadatabaseforsessionstoragei

What is session regeneration, and how does it improve security?What is session regeneration, and how does it improve security?May 02, 2025 am 12:15 AM

Session regeneration refers to generating a new session ID and invalidating the old ID when the user performs sensitive operations in case of session fixed attacks. The implementation steps include: 1. Detect sensitive operations, 2. Generate new session ID, 3. Destroy old session ID, 4. Update user-side session information.

What are some performance considerations when using PHP sessions?What are some performance considerations when using PHP sessions?May 02, 2025 am 12:11 AM

PHP sessions have a significant impact on application performance. Optimization methods include: 1. Use a database to store session data to improve response speed; 2. Reduce the use of session data and only store necessary information; 3. Use a non-blocking session processor to improve concurrency capabilities; 4. Adjust the session expiration time to balance user experience and server burden; 5. Use persistent sessions to reduce the number of data read and write times.

How do PHP sessions differ from cookies?How do PHP sessions differ from cookies?May 02, 2025 am 12:03 AM

PHPsessionsareserver-side,whilecookiesareclient-side.1)Sessionsstoredataontheserver,aremoresecure,andhandlelargerdata.2)Cookiesstoredataontheclient,arelesssecure,andlimitedinsize.Usesessionsforsensitivedataandcookiesfornon-sensitive,client-sidedata.

How does PHP identify a user's session?How does PHP identify a user's session?May 01, 2025 am 12:23 AM

PHPidentifiesauser'ssessionusingsessioncookiesandsessionIDs.1)Whensession_start()iscalled,PHPgeneratesauniquesessionIDstoredinacookienamedPHPSESSIDontheuser'sbrowser.2)ThisIDallowsPHPtoretrievesessiondatafromtheserver.

What are some best practices for securing PHP sessions?What are some best practices for securing PHP sessions?May 01, 2025 am 12:22 AM

The security of PHP sessions can be achieved through the following measures: 1. Use session_regenerate_id() to regenerate the session ID when the user logs in or is an important operation. 2. Encrypt the transmission session ID through the HTTPS protocol. 3. Use session_save_path() to specify the secure directory to store session data and set permissions correctly.

Where are PHP session files stored by default?Where are PHP session files stored by default?May 01, 2025 am 12:15 AM

PHPsessionfilesarestoredinthedirectoryspecifiedbysession.save_path,typically/tmponUnix-likesystemsorC:\Windows\TemponWindows.Tocustomizethis:1)Usesession_save_path()tosetacustomdirectory,ensuringit'swritable;2)Verifythecustomdirectoryexistsandiswrita

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.