PHP解析WAYOS 路由 JSON数据

<?php
@header("content-type:text/html;charset=UTF-8");
if(isset($_REQUEST['p'])){
    $p = $_REQUEST ['p'];
}else{
    $p = 's';
}
if(isset($_REQUEST['d'])){
    $d = $_REQUEST ['d'];
}else{
    $d = 't';
}
//登陆函数
$urlQian  = 'http://XXXXXXXXXXXXX:8081';  //账户信息地址 
$user     = 'XXXXXXXX';                   //账户信息
$password = 'XXXXXX';                     //账户信息                  
$postUrl  = $urlQian.'/login.cgi';
function json_to_array($data){
    $data = json_decode($data,JSON_UNESCAPED_UNICODE);
    return $data;
}
function array_to_json($data){
    $data = json_encode($data,JSON_UNESCAPED_UNICODE);
    return $data;
}
function Sec2Time($allSec){
    $remainSec = (int)$allSec;
    $humanTime = '';
    if($remainSec > 86400) {
        $days = (int)($remainSec / 86400);
        $remainSec = $remainSec % 86400;
        $humanTime .= $days.'天';
    }
    if($remainSec > 3600) {
        $hours = (int)($remainSec / 3600);
        $remainSec = $remainSec % 3600;
        $humanTime .= $hours.'时';
    }
    if($remainSec > 60) {
        $minutes = (int)($remainSec / 60);
        $remainSec = $remainSec % 60;
        $humanTime .= $minutes.'分';
    }
    if($remainSec > 0) {
        $seconds = $remainSec;
        $humanTime .= $seconds.'秒';
    }
    return $humanTime;
}
function http_json_data($postUrl, $curlPost, $cookiesState) {
    if (empty($postUrl) || empty($curlPost)) {
        return false;
    }
    $cookie_file = dirname(__FILE__).'/cookie.txt';
    $ch = curl_init();
    $header = array();
    $header[] = 'content-type: application/x-www-form-urlencoded';
    $header[] = 'charset=UTF-8';
    curl_setopt($ch, CURLOPT_URL,$postUrl);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);
    if ($cookiesState==1){
        curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
    }else{
        curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
    }
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    $data = curl_exec($ch);
    $data = iconv('gbk','utf-8', $data);
    curl_close($ch);
    return $data;
}
function lidData($urlQian,$cookiesState=0) {
    $postUrl=$urlQian.'/dhcp_list.data';
    $curlPost = '_=1668761642829';
    $lidData = http_json_data($postUrl, $curlPost , $cookiesState=0);
    $lidData= json_to_array($lidData);
    return $lidData;
}

$curlPost='user='.$user.'&password='.$password.'&checkCode=&key=&Submit=%E7%99%BB++%E5%BD%95';
$login = http_json_data($postUrl, $curlPost,$cookiesState=1);  //模拟登陆
//var_dump($login);
if(strpos($login,'login.html?flag=0') !== false){
    @header("content-type:application/json;charset=UTF-8");
    echo '{"state":"0","key":"账户密码错误"}';
}elseif(strpos($login,'login.html?flag=1') !== false){
    @header("content-type:application/json;charset=UTF-8");
    echo '{"state":"0","key":"验证码错误"}';
    
}else{
    $data = lidData($urlQian,$cookiesState=0);
    //print_r($data);
    if($p == 's'){
        $n_time = array_column($data,$d);
        array_multisort($n_time,SORT_ASC,$data);
        $p='j';
        //echo $p;
    }else{
        $n_time = array_column($data,$d);
        array_multisort($n_time,SORT_DESC,$data);
        $p='s';
        //echo $p;
    }
    echo '<p align="center" style="font-size: 22px;">合计有'.sizeof($data).'台设备在线</p>';
    echo '<table border="1" style="margin:auto;table-layout:fixed;font-size:12px;height: 300px;" cellspacing="0"><tr><th>序号</th><th><a href="?d=n&p='.$p.'">名称</a></th><th><a href="?d=m&p='.$p.'">MAC地址</a></th><th><a href="?d=i&p='.$p.'">IP地址</a></th><th><a href="?d=t&p='.$p.'">在线时间</a></th></tr><tr>';

    foreach($data as $key => $val ){
        $id_num = $key +1;
        $id_num = ($id_num>9)?$id_num:'0'.$id_num;
        echo '<tr style="text-align:center;height: 30px;"><td>'.$id_num.'</td><td>'.$val['n'].'</td><td>'.$val['m'].'</td><td>'.long2ip($val['i']).'</td><td>'.Sec2Time($val['t']).'</td></tr>';
    }
    echo '</tr></table>';
}
?>