PHP Decode

<?php  
 
namespace Project\Installer\Helpers; 
 
use Exception; 
use Illuminate\Support\Facades\Http; 
use Project\Installer\Helpers\Helper; 
use Project\Installer\Helpers\URLHelper; 
 
class ValidationHelper { 
 
    public function validate(array $data) { 
 
        $config = new ConfigHelper(); 
        $url = new URLHelper(); 
        $db = new DBHelper(); 
        $helper = new Helper(); 
 
        $response = Http::acceptJson()->get($url->getToken(),[ 
            'marketplace'       => $config->get()['marketplace'] ?? "", 
        ]); 
 
        $response_body = json_decode($response->body(),true); 
 
        if(!$response->successful() || $response_body['type'] != 'success') { 
            throw new Exception("Server communication failed! Please try again"); 
        } 
 
        $auth_tokens = $response_body['data']['tokens']; 
        foreach($auth_tokens as $token) { 
            $response = Http::withHeaders([ 
                'Authorization'     => 'Bearer ' . $token, 
            ])->get($url->getValidation(),['code' => $data['code']]); 
 
            if($response->successful()) { 
                break; 
            } 
 
            sleep(1); 
        } 
 
        $buyer_info = $response->collect()->get('buyer'); 
 
        $data['client'] = $helper->client(); 
        $helper->connection($data); 
 
        if($buyer_info != $data['username']) { 
            throw new Exception("Oops! Requested user is invalid!"); 
        } 
 
        $helper->cache($data); 
 
        $this->setStepSession(); 
    } 
 
    public function setStepSession() { 
        session()->put('validation',"PASSED"); 
    } 
 
    public static function step() { 
        return session('validation'); 
    } 
} ?>