<?php
header("content-Type: application/json; charset=utf-8");
$dom=!empty($_GET['domain'])?trim($_GET['domain']):'';
if(empty($dom)){
    $return=array('status'=>0,'info'=>'domain is error');ajaxReturn($return);
}
$res=checkreg($dom);
if($res){
    save_success($dom);
    $return=array('status'=>1,'info'=>$dom."可以被注册");ajaxReturn($return);
}else{
    $return=array('status'=>0,'info'=>$dom."已经被注册");ajaxReturn($return);
}

function checkreg($DomainName){
    $WhoisAPI = 'http://panda.www.net.cn/cgi-bin/check.cgi?area_domain='.$DomainName;//定义whois api的url
    $WhoisData = file_get_contents($WhoisAPI);//定义值为读取到的whois信息
    return strpos($WhoisData,'is available')>0;
}

function ajaxReturn($array){
    $content=json_encode($array,JSON_UNESCAPED_UNICODE);
    if(empty($_GET['callback'])){
        echo $content;
    }else{
        echo $_GET['callback']."(".$content.")";
    }exit;
}
function save_success($str){
	if(empty($str))return;$str=trim($str);
    $filename='./success/'.date('Ymd').'.log';
    if(file_exists($filename)){
        $content=file_get_contents($filename);
        if(strpos('a'.$content,$str)>0)return true;
    }    
	$fp = fopen($filename, 'a+');
	fwrite($fp, $str."\n");
	fclose($fp);
	unset($str);
}
?>