iam use codeigniter depend composer google api client

Retrieve Contact Google API .php

<?php
public function index()
	{
		
		$google_redirect_uri = 'your url callback';

		//setup new google client
		$client = new Google_Client();
		$client -> setApplicationName('My application name');
		$client->setAuthConfigFile("./client_secret.json");
		$client -> setRedirectUri($google_redirect_uri);
		$client -> setAccessType('online');

		$client -> setScopes('https://www.google.com/m8/feeds');
		if (isset($_GET['code'])) {
			$client->authenticate($_GET['code']);
			$_SESSION["token"] = $client->getAccessToken();
		}

		if (!isset($_SESSION['token'])) {
			$googleImportUrl = $client -> createAuthUrl();
			echo "<a href='{$googleImportUrl}'> Import google contacts </a>";
		}else{
			$client->setAccessToken($_SESSION['token']);
			// $token = json_decode($_SESSION['token']);
			// $token->access_token();
			$token = $client->getAccessToken();
			$token = $token["access_token"];
			// print_r($token);
			$x = "https://www.google.com/m8/feeds/contacts/default/full?alt=json&max-results=10&access_token={$token}";
			$ch = curl_init($x);
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

			$rs = curl_exec($ch);

			// echo "<pre>";
			// print_r (json_decode($rs,true));
			// echo "</pre>";

			$arr = array();
			$contacts = json_decode($rs,true);
			foreach ($contacts["feed"]["entry"] as $row) {
				$arr[] = [
					"name" => isset($row["title"]['$t']) ? $row["title"]['$t'] :"kosong",
					"phone" => isset($row['gd$phoneNumber'][0]['$t']) ?  $row['gd$phoneNumber'][0]['$t']:"",
				];
			}

			echo "<pre>";
			// print_r ($contacts);
			print_r ($arr);
			echo "</pre>";
			session_destroy();
		}
	}