由两部分组成，一个index.php文件，一个whois的接口文件；

1  2  3  4  5 
      6 
      7  8  9 20 
域名到期查询：
21 
     
      " method="post">22     
      
       23         
       
24         输入域名：25         
26 27 
       30     
       
        详情：
        +
       
31     
       
        32         
        PrintSta();34             $rs = $sd->GetInfo();35             if($rs=="ok") echo $sd->domain." 未注册！
        
\r\n";36             else if($rs=="") echo "无法查询 ".$sd->domain." 状态！
        
\r\n";37             else echo $sd->domain." 已注册，到期时间：$rs
        
\r\n";38             //获得域名的详细whois信息39             echo $sd->GetWhois();40         ?>41     
       
42 43 
      
     

whois.php

1 
     domain = $udomain;  6     }  7     //  8     // 获取whois并分析域名状态  9     // ok 未被注册 10     // 非空值 过期时间 11     // 空值 未知 12     // 13     function GetInfo(){ 14         /* 15         $dinfo = trim($this->GetWhois()); 16         if($dinfo=="") return ""; 17         if(eregi("no match",$dinfo)) return "ok"; 18         //return $rs; 19         */ 20         $wl = ""; 21         $w_server = $this->GetServer(); 22         if($w_server=="") return ""; 23         $fp = fsockopen($w_server, 43, $errno, $errstr, 30); 24         if(!$fp){ 25             echo $errstr; 26             return ""; 27         } 28          29         $out = $this->domain."\r\n"; 30         $out .= "Connection: Close\r\n\r\n"; 31         fputs($fp, $out); 32          33         while (!feof($fp)){ 34             $wl = fgets($fp, 255); 35              36             if(eregi("no match",$wl)){ 37             fclose($fp); 38             return "ok"; 39             } 40             if(eregi("Expiration Date",$wl)){ 41                 $lines = split(":",$wl); 42                 $t = trim($lines[1]); 43                 $ts = split(" ",$t); 44                 $t = $ts[0]; 45                 if(ereg("[^0-9-]",$t)){ 46                     $ts = split("-",$t); 47                     $t = $ts[2]."-".$this->MonthToNum($ts[1])."-".$ts[0]; 48                 } 49                 fclose($fp); 50                 return $t; 51             } 52         } 53         fclose($fp); 54         return ""; 55     } 56     // 57     //获得域名的整个whois信息 58     // 59     function GetWhois(){ 60         $wh = ""; 61         $w_server = $this->GetServer(); 62         if($w_server=="") return ""; 63         $fp = fsockopen($w_server, 43, $errno, $errstr, 30); 64          65         if(!$fp){ 66             echo $errstr; 67             return ""; 68         } 69         $out = $this->domain."\r\n"; 70         $out .= "Connection: Close\r\n\r\n"; 71         fputs($fp, $out); 72         while (!feof($fp)){ 73             $wh .= nl2br(fgets($fp, 255)); 74         } 75         fclose($fp); 76         return $wh; 77     } 78     // 79     //输出当前域名的状态信息 80     // 81     function PrintSta(){ 82         $rs = $this->GetInfo(); 83         if($rs=="ok") echo "
" . "".$this->domain."" . " 未注册！
"; 84         else if($rs=="") echo "
" . "无法查询 " . "".$this->domain."" . " 状态！
"; 85         else echo "
" . "" . $this->domain."" . " 已注册，到期时间：$rs
"; 86     } 87     // 88     //获得 whois 查询服务器 89     // 90     function GetServer(){ 91         $udomain=substr($this->domain,-3); 92         switch($udomain){ 93             case "com": 94             $w_server="whois.internic.net"; 95             break; 96             case "net": 97             $w_server="whois.internic.net"; 98             break; 99             case "org":100             $w_server="whois.pir.org";101             break;102             case "nfo":103             $w_server="whois.afilias.info";104             break;105             case "biz":106             $w_server="whois.biz";107             break;108             case ".cc":109             $w_server="whois.nic.cc";110             break;111             case "edu":112             $w_server="whois.educause.net";113             break;114             case "gov":115             $w_server="whois.nic.gov";116             break;117             case ".cn":118             $w_server="whois.cnnic.net.cn";119             break;120             default:121             $w_server="";122         }123         return $w_server;124     }125 //126 //英语的月份转为数字127 //128     function MonthToNum($m){129         $m = strtolower($m);130         131         for($i=1;$i<=12;$i++){132             $tt = mktime(0,0,0,$i+1,0,2005);133             if($m==strtolower(strftime("%b",$tt))){134                 if($i>9) return $i;135                 else return "0".$i;136             }137         }138     }139 }140     //接收域名值141     if ($_SERVER["REQUEST_METHOD"] == "POST"){142        $yuming = test_input($_POST["yuming"]);143     }144 145     function test_input($data){146        $data = trim($data);147        $data = stripslashes($data);148        $data = htmlspecialchars($data);149        return $data;150     }151     /* echo $yuming; */152     $sd = new SearchDomain();153     $sd->SetDomain($yuming);154     $sd->PrintSta();155     //查询域名是否被注册，等价于 $sd->PrintSta();156     //$rs = $sd->GetInfo();157     //if($rs=="ok") echo $sd->domain." 未注册！
\r\n";158     //else if($rs=="") echo "无法查询 ".$sd->domain." 状态！
\r\n";159     //else echo $sd->domain." 已注册，到期时间：$rs
\r\n";160     //获得域名的详细whois信息161     //echo $sd->GetWhois();162  ?>

注意两点：

1,index.php要include一下whois文件。

2,通过post方式传name = "yuming"这个值来实现查询，index.php传，whois.php接收。

接收方式

1 //接收域名值 2     if ($_SERVER["REQUEST_METHOD"] == "POST"){ 3        $yuming = test_input($_POST["yuming"]); 4     } 5  6     function test_input($data){ 7        $data = trim($data); 8        $data = stripslashes($data); 9        $data = htmlspecialchars($data);10        return $data;11     }