<?php

require 'vendor/autoload.php';
use Plivo\RestAPI;
$auth_id = "Your AUTH_ID";
$auth_token = "Your AUTH_TOKEN";
$p = new RestAPI($auth_id, $auth_token);
$response = $p->get_cdrs();
// print_r ($response);
/* 
Sample Output
( 
    [status] => 200 
    [response] => Array ( 
        [api_id] => 22852b7c-ae03-11e4-a2d1-22000ac5040c 
        [meta] => Array ( 
            [limit] => 20 
            [next] => /v1/Account/XXXXXXXXXXXXXXX/Call/?limit=20&offset=20 
            [offset] => 0 
            [previous] => 
            [total_count] => 124 
        ) [objects] => Array ( 
            [0] => Array ( 
                [bill_duration] => 8 
                [billed_duration] => 60 
                [call_direction] => outbound 
                [call_duration] => 8 
                [call_uuid] => dd9b3414-adc8-11e4-aed8-377ffe01233f 
                [end_time] => 2015-02-06 10:25:20+04:00 
                [from_number] => 
                [parent_call_uuid] => d66cc0a4-adc8-11e4-ac44-377ffe01233f