2022-12-18 16:32:19 +08:00
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<?php
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2022-12-18 18:01:07 +08:00
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#print_r(dns_get_record('icu',DNS_SOA));
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$url='al.c919.n3n.com.cn';
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while(true){
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preg_match("#\.(.*)#i",$url,$match);//获取根域名
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$domin = $match[1];
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print_r($domin);
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$soa=dns_get_record($domin,DNS_SOA);
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if(array_key_exists('0',$soa)){
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if(array_key_exists('mname',$soa[0])){
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print_r($soa[0]);
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break;
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}else{
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$url=$domin;
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}
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}else{
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$url=$domin;
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}
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}
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?>
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