PHP调用万网的接口实现域名查询功能

<form name="form1" method="post" action="chaxun.php">
<tbody><tr>
<td align="right" valign="middle" width="251">
<p align="center">
<img border="0" src="./templates/img/www.gif"><input name="dns" type="text" id="dns" size="20" style="background-color: #C0C0C0"></p></td>
<td style="padding-top:11px;" valign="top" width="99">
<!--
<input type="image" src="./templates/img/cx.gif" align="left" onclick="submit()" width="50" height="18">
-->
<input type="submit" value="查询"/>
</td>
</tr>
<tr>
<td colspan="2" align="left" valign="top" style="padding-left:12px;">
<table width="96%" border="0" cellspacing="0" cellpadding="0" height="94%">
<tbody><tr>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="com" checked="">.com</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="cn" checked="">.cn</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="tel" checked="">.tel</td>
</tr>
<tr>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="mobi">.mobi</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="net" checked="">.net</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="org">.org</td>
</tr>
<tr>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="asia">.asia</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="me">.me</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="com.cn" checked="">.com.cn</td>
</tr>
<tr>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="net.cn">.net.cn</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="org.cn">.org.cn</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="gov.cn">.gov.cn</td>
</tr>
<tr>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="hk">.hk</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="tv">.tv</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="biz">.biz</td>
</tr>
<tr>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="cc">.cc</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="name">.name</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="info">.info</td>
</tr>
<tr>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="公司">.公司</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="网络">.网络</td>
<td align="left" width="76"><input name="ext[]" type="checkbox" id="ext" value="中国">.中国</td>
</tr>
</tbody></table></td>
</tr>

</tbody>
</form>

<?php

//得到顶级域名
$ext=$_POST['ext'];
//得到二级域名
$dns = $_POST['dns'];

//print_r($ext);
//$domain = $dns . "." . $ext[0];
//echo $domain;

//遍历所有的域名
foreach ($ext as $value) {
//组合域名
$domain = $dns . "." . $value;

//查询：
echo $domain ;

$do = "http://panda.www.net.cn/cgi-bin/check.cgi?area_domain=" . $domain;
$xml_data = file_get_contents($do);
$result_arr = (array) simplexml_load_string($xml_data);

$returncode=$result_arr['returncode'];
$key=$result_arr['key'];

$original=$result_arr['original'];

$status= substr($original,0,3);

if($status=="210"){

echo "：恭喜您,可以注册";

}else if($status=="211"){

echo "：已经注册";

}else if($status=="212"){

echo "：参数错误";

}
echo '<br>';

}

?>