How to remove unwanted characters from Guzzlehttp json reposnce - php

Question

Hi I am new to Laravel and have tried several turtorials on Goutte on Guzzelhttp but I am still unable to figure out how to remove 3 unwanted charactures from the begining of the json responce as shown here using curl and json_decode.
$url = "URL to atom feed";
$user = "user";
$pass = "pass";
// using CURL to get our results
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERPWD, $user . ":" . $pass);
$output = curl_exec($ch);
curl_close($ch);
// decoding our results into an associative array
// doing a substring as there are 3 weird characters being passed back from IIS in front of the string
$data = json_decode(substr($output, 3, strlen($output)), true);
// grabbing our results object
$list = $data['$resources'];
I have in my ScrapeController,
<?php
// app/controllers/ScrapeController.php
class ScrapeController extends BaseController {
public function getIndex() {
echo "Scrape index page.";
}
public function getNode($node) {
echo "Scraped page $node";
}
public function getPages() {
$client = new GuzzleHttp\Client();
$res = $client->get('URL to atom feed', ['auth' => ['user', 'pass']]);
echo $res->getStatusCode();
// "200"
// echo $res->getHeader('content-type');
// 'application/json; charset=utf8'
echo $res->getBody();
// {"type":"User"...'
this is what I have tried $res->getBody(substr($res, 3, strlen($res));without any luck I am unable to find any answers to this problem on guzzle documents page save to say any custom json_decode option should be preformed in the getBody() option.

Answer 1

You need to do
$body = substr($res->getBody(), 3)
instead of
$body = $res->getBody(substr($res, 3, strlen($res))

Answer 2

I recently found this piece of code on github by Colin Viebrock,
$client = new Guzzle\Http\Client('http://example.com');
$client->addSubscriber( new Cviebrock\Guzzle\Plugin\StripBom\StripBomPlugin() );
$request = $client->get('some/request');
$response = $client->send($request);
$data = $response->json();
works a treat in laravel hope this helps anyone how gets "Unable to parse response body into JSON: 4" using Guzzle.