api

 <?php

namespace App\Http\Controllers\api;

class Constants
{
    public static $apikey = 'asdf25c1d5eg674d2c28xzc';

    public static function checkKey($key){
        //if()
    }
}
?>

private function checkAPICode($api){
    if ($api==='' || $api===null){
        ReturnJSON::printError('apikey param is empty!!');die();
    }

    if ($api!==Constants::$apikey){
        ReturnJSON::printError('Wrong API Key');die();
    }
}


$apikey=$request->post("apikey");

$this->checkAPICode($apikey);


public static function printJSON($data, $key = 'data', $status = 'success')
{
    header('Content-Type: text/json; charset=utf-8');
    echo json_encode(array('status' => $status, $key => $data), JSON_UNESCAPED_UNICODE);
}

private $_ip;

$this->_ip = $ip;