PHP域名Whois查询API接口源码，接口数据来自于站长工具的Whois的查询工具。
API接口代码
<?php
error_reporting(0);
header('charset=utf-8');
if (!empty($_GET['domain'])) {//判断是否有get值
/*获取网页内容*/
$curl = curl_init();
$httpheader[] = "Accept:*/*";
$httpheader[] = "Accept-Language:zh-CN,zh;q=0.8";
$httpheader[] = "Connection:close";
$httpheader[] = "Referer:https://whois.chinaz.com";
$httpheader[] = "User-agent:Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B176 MicroMessenger/4.3.2";
curl_setopt($curl, CURLOPT_HTTPHEADER, $httpheader);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 60);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_URL, 'https://whois.chinaz.com/' . str_replace(array("https://", "https://"), "", $_GET['domain']));//去除https://和https://
$text = curl_exec($curl);
curl_close($curl);
/*对获取的网页内容截取*/
preg_match('/注册商</div><div class="fr WhLeList-right"><div class="block ball"><span>(.*?)</span>/i', $text, $zhuceshang);
preg_match('/联系人</div><div class="fr WhLeList-right block ball lh24"><span>(.*?)</span>/i', $text, $contacts);
preg_match('/创建时间</div><div class="fr WhLeList-right"><span>(.*?)</span>/i', $text, $chuangjianshijian);
preg_match('/过期时间</div><div class="fr WhLeList-right"><span>(.*?)</span>/i', $text, $guoqishijian);
preg_match('/DNS</div><div class="fr WhLeList-right">(.*?)<br/></div>/i', $text, $dns);
preg_match('/联系电话</div><div class="fr WhLeList-right block ball lh24"><span>(.*?)</span>/i', $text, $phone);
preg_match('/公司</div><div class="fr WhLeList-right"><div class="block ball"><span>(.*?)</span>/i', $text, $gongsi);
preg_match('/<div class="fl WhLeList-left">联系邮箱</div><div class="fr WhLeList-right block ball lh24"><span>(.*?)</span>/i', $text, $mail);
$dnsarray = explode("<br/>", $dns[1]); //对多个dns分组
/*对几个可能为空的值判断*/
if (!empty($gongsi[1])) {
$gongsi = $gongsi[1];
} else {
$gongsi = '-';
}
if (!empty($phone[1])) {
$phone = $phone[1];
} else {
$phone = '-';
}
if (!empty($zhuceshang[1])) {
$zhuceshang = $zhuceshang[1];
} else {
$zhuceshang = '-';
}
/*输出并结束程序*/
exit('
<!--数据来源：站长工具 whois.chinaz.com -->
<p><strong>注册商：</strong>' . $zhuceshang . '</p>
<p><strong>联系人：</strong>' . $contacts[1] . '</p>
<p><strong>公司：</strong>' . $gongsi . '</p>
<p><strong>邮箱：</strong>' . $mail[1] . '</p>
<p><strong>电话：</strong>' . $phone . '</p>
<p><strong>创建时间：</strong>' . $chuangjianshijian[1] . '</p>
<p><strong>过期时间：</strong>' . $guoqishijian[1] . '</p>
<p><strong>DNS：</strong>' . "$dnsarray[0]t$dnsarray[1]" . '</p>');
} else {
//如果get值为空则显示'Error'并结束程序
exit('请填写域名');
}API接口使用方法：网站/接口名称.php/?domain=这这里是要查询的域名
本文转载自:精准像素：11px.cn ，感谢作者分享实用知识
