WHOIS类的修改版。_php

1、简化了代码。（其实就是去掉了一些用不着的变量的定义）
2、针对从INTERNIC检索到的信息过于简单，根据INTERNIC反馈的信息中的WHOIS SERVER进行进一步查询。比如，YAHOO在whois.networksolutions.com上有更详细的信息。

<?
class whois {  

http://www.gaodaima.com/45331.htmlWHOIS类的修改版。_php

var $use_cache = 1;  
var $FROM_CACHE=0;  
var $cache_dir = "./";            // 根据你的系统自己设置

var $port = 43;  
var $MAXLEN = 100;  

// 如果你想在连接失败后自动重试，
// 设置重试次数 $MAX_RETRIES
var $MAX_RETRIES = 0;  
var $SLEEP_VAL = 1;  
var $RETRY = 0;  

var $FOUND = 0;                // 查询没有结果，次值为0
var $ERROR = 0;                // 查询过程中的出错次数
var $DATA_MIN = 8;             // 我们至少应该获得8个字节的数据
var $DATA_COUNT = 0;  

var $WHOIS_SERVER;
var $NEW_WHOIS;
var $FURTHER_INFO = 0;

// 打开和WHOIS SERVER的socket连接
// 默认的是 whois.internic.net
function connect ($server) {
    $this->RETRY=0;
        while($this->RETRY <= $this->MAX_RETRIES):
                $ptr = fsockopen($server, $this->port);  
                if($ptr>0):  
                        $this->ERROR=0; // just in case we’re on a retry  
                        return($ptr);  
                else:  
                        $this->ERROR++;  
                        $this->RETRY++;  
                        sleep($this->SLEEP_VAL);  
                endif;  
        endwhile;  
        }  

// 获取简单的查询结果，并以行为单位，放入数组
// 国际域名查询
function rawlookup ($query, $server) {
    
    if(!$query):  
            return( "");  
    endif;

    $ptr=$this->connect($server);
    
    if($ptr):  
            if(!ereg($query, "/n$")):  
                    $query .= "/n";  
            endif;  
            fputs($ptr, "$query");  
            $i=0;  
            $this->FOUND=1;  
            while(!feof($ptr)):  
                    $array[$i]=fgets($ptr,$this->MAXLEN);  
                    $this->DATA_COUNT+=strlen(chop($array[$i]));  
                    if(eregi( "No match for", $array[$i]) || eregi ("No entries found", $array[$i])):  
                            $this->FOUND=0;  
                     elseif(eregi( "WHOIS database is down",$array[$i])):  
                            $this->ERROR++;  
                             $this->FOUND=0;  
                     elseif(eregi( "Please wait a while and try again",$array[$i])):  
                            $this->ERROR++;  
                             $this->FOUND=0;  
                            break;  
                    endif;  
                    if(eregi("Whois Server:",$array[$i])):
                        $this->NEW_WHOIS=trim(substr(trim($array[$i]),(strlen(trim($array[$i]))-13)*(-1)));
                        $this->FURTHER_INFO=1;
                    endif;
                    $i++;  
            endwhile;  
    
            fclose($ptr);  
    
            if($this->DATA_COUNT>$this->DATA_MIN):
                    return($array);          
            else:  
                    $this->ERROR++;  
            endif;  
    else:  
            $this->ERROR++;  
    endif;
        }  

// 国内域名查询
function cnrawlookup ($query, $server) {  
        if(!$query):  
                return( "");  
        endif;  

        $ptr=$this->connect($server);  
        if($ptr):  
                if(!ereg($query, "/n$")):  
                        $query .= "/n";  
                endif;  
                fputs($ptr, "$query");  
                $i=0;  
                $this->FOUND=1;  
                while(!feof($ptr)):  
                        $array[$i]=fgets($ptr,$this->MAXLEN);  
                        $this->DATA_COUNT+=strlen(chop($array[$i]));  
                        if(eregi( "No match for", $array[$i]) || eregi ("No entries found", $array[$i])):  
                                $this->FOUND=0;  
                         elseif(eregi( "WHOIS database is down",$array[$i])):  
                                $this->ERROR++;  
                                 $this->FOUND=0;  
                         elseif(eregi( "Please wait a while and try again",$array[$i])):  
                                $this->ERROR++;  
                                 $this->FOUND=0;  
                                break;  
                        endif;  
                        $i++;  
                endwhile;  
                fclose($ptr);  

                if($this->DATA_COUNT>$this->DATA_MIN):
                        return($array);          
                else:  
                        $this->ERROR++;  
                endif;  
        else:  
                $this->ERROR++;  
        endif;  
        }  
};

$myWHOIS=new whois();

$thisname=$servername.$domainname;
// 根据国内域名或国际域名选择WHOIS SERVER
if (ereg(".cn$",$thisname))
{
    $myWHOIS->WHOIS_SERVER="whois.cnnic.net.cn";
    $array=$myWHOIS->cnrawlookup($thisname,$myWHOIS->WHOIS_SERVER);
}
else
{
    $myWHOIS->WHOIS_SERVER="whois.internic.net";
    //$myWHOIS->WHOIS_SERVER="whois.networksolutions.com";
    $array=$myWHOIS->rawlookup($thisname,$myWHOIS->WHOIS_SERVER);
}

echo "<h2 align=center>".$thisname."</h2>";
echo "<table>";
$x=0;
while ($x<count($array))
{
    echo "<tr><td>$x</td>";
    echo "<td>$array[$x]</td>";
    $x++;
}
echo "</table>";

if (!ereg(".cn$",$thisname))
{
    echo "<h2 align=center>Furth infomation</h2>";
    $array_further=$myWHOIS->rawlookup($thisname,$myWHOIS->NEW_WHOIS);
    
    echo "<table>";
    $x=0;
    while ($x<count($array_further))
    {
        echo "<tr><td>$x</td>";
        echo "<td>$array_further[$x]</td>";
        $x++;
    }
    echo "</table>";
}

?>  

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