Angular 9 : php a RESTful CRUD API with HttpClient

one text

l have following php module

uAPIwork.php

    <?php $___notjson=1; header('Content-Type: text/html; charset= utf-8');
    
    
     require 'uAPImodule.php';
     $request = new Request(array(
        'oauth_consumer_key'    => 'check',
        'oauth_consumer_secret' => 'fkFNhdbbRENO1GQilHxWvO86QabO6g',
        'oauth_token'           => 'OfTW8pDo1aIjNvHOdv.nRbZAER5x.LRndWwltepI',
        'oauth_token_secret'    => '6bnfzAGvMpHpJF1gs9XWqSWGBAdAzdXJWxAj1S..'
        ));
     $response = $request->get('/news', array(
    //???�?�?�???�???�?� ???�???�???�?�???�, ?�???�?? ?????�????
        ));
        json_encode($response); //?????�???�?�?�?? ???�???�?�
        print_r($response);
        ?>

Home.ts

     request(){
    
     this.http
               .get('assets/uAPIwork.php')
               .subscribe(res=>{console.log(res)});
    
    
      }

When i run the code , i have following error: HttpErrorResponse?�{headers: HttpHeaders, status: 200, statusText: "OK", url: "http://localhost:4200/assets/uAPIwork.php", ok: false,?�??�}

any solution please ?