看不懂,求助各位
<P><?<BR>//本例用PHP4实现顶级域名查询<BR>if ($domain) <BR>{ <BR> if ($domain) <BR> { <BR> //连接到internic域名服务器<BR> $fp = fsockopen( "rs.internic.net", 80, &$errno, &$errstr, 10); <BR> if (!$fp) <BR> { <BR> echo "$errstr ($errno)<br>\n"; <BR> } <BR> else <BR> { <BR> fputs($fp, "$domain\r\n"); <BR> while(!feof($fp)) <BR> { <BR> $buf = fgets($fp,128); <BR> if (ereg( "Whois Server:", $buf)) <BR> { <BR> $server = str_replace( "Whois Server: ", "", $buf); <BR> $server = trim($server); <BR> } <BR> } <BR> fclose($fp); <BR> } <BR> if ($server) <BR> { <BR> echo "<B>$domain 的注册服务器是 $server:</B><BR>"; <BR> echo "<PRE>"; <BR> $fp = fsockopen($server, 43, &$errno, &$errstr, 10); <BR> if(!$fp) <BR> { <BR> echo "不能连接到服务器 $server 的43端口.\n"; <BR> echo "$errstr ($errno)<br>\n"; <BR> } <BR> else <BR> { <BR> fputs($fp, "$domain\r\n"); <BR> while(!feof($fp)) <BR> { <BR> echo fgets($fp,128); <BR> } <BR> fclose($fp); <BR> } <BR> } <BR> else { <BR> echo( "<b>$domain 没有注册。</b><BR>"); <BR> } <BR> echo ( "</PRE><BR>"); <BR> } </P><P>} <BR>?></P>
<P><FORM ACTION=" <?PHP echo($PHP_SELF); ?>" METHOD="post"> <BR> 只能查询.com,.net和.org的域名<br> <BR> 输入域名:<INPUT TYPE="text" NAME="domain" SIZE="30" MAXLENGTH="100"> <BR> <INPUT TYPE=submit VALUE="查 询"> <BR></FORM><BR> 各位,你们好,我想请问这个例题为什么运行不了吗?请快点指教,急!</P>
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