Handy json output class

Response.php

<?php
/**
* User: luke hardiman
* Date: 2/20/15
* Time: 11:23 PM
* @Description : Handy json output class
*/

namespace Api;
class Response
{
    /**
    * @param $data response to send back as JSON with Callback
    * @param bool|true $success
    * @param cross dom allowed or disabled for this request
    * @param int $status_code of response default 200
    * @param string $status_message of response default OK
    * @todo move cross_dom default to false but need to test all transactions before this
    */
    public function send($data, $success = true, $cross_dom = true, $status_code = 200, $status_message = "OK")
    {
        //new response
        if ($success == false){
            $status_code = 202;
            $status_message = "Invalid Request";
        }
        //http_response_code($status_code);
        header("HTTP/1.1 {$status_code} {$status_message}");
      
            
            header('Content-Type: application/json');
            header('Access-Control-Allow-Origin: *');
            
            //encode call
            $json = json_encode(array('success' => $success, 'data' => $data));
            echo (isset($_GET['callback'])
            ? "{$_GET['callback']}($json)"
            : $json);
            //exit; //kill from other processing
       
        
        exit;//die end the request
        
    }
    public function action(){
        return (isset($_GET['action']) && !empty($_GET['action'])) ? strtolower($_GET['action']) : false;
    }
    public function getRequiredRequest($attr,$type = 'GET'){
        if (strtoupper($type == 'POST')){
            if (!isset($_POST[$attr]) || empty($_POST[$attr]))
                return $this->send("missing $attr",false);
            
            return $_POST[$attr];
        }
        if (strtoupper($type == 'GET')){
            if (!isset($_GET[$attr]) || empty($_GET[$attr]))
                return $this->send("missing $attr",false);
            
            return $_GET[$attr];
        }
    }
    public function getRequest($attr,$type = 'GET'){
        if (strtoupper($type == 'POST')){
            if (!isset($_POST[$attr]) || empty($_POST[$attr]))
                return false;
            
            return $_POST[$attr];
        }
        if (strtoupper($type == 'GET')){
            if (!isset($_GET[$attr]) || empty($_GET[$attr]))
                return false;
            
            return $_GET[$attr];
        }
    }
    
    
  
}