Fetch data from PWA Project Online

<?php
set_time_limit(0);
require_once 'SPOClient.php';
function connectSPO($url,$username,$password)
{
    try {
        $client = new SPOClient($url);
        $client->signIn($username,$password);
        return $client;
        echo 'You have been authenticated successfully\n';
    }
    catch (Exception $e) {
        echo 'Authentication failed: ',  $e->getMessage(), "\n";
    }
}
$username = 'USERNAME-OFFICE-365';
$password = 'PASSWORD-OFFICE-365';
$i=0;                                          // register counter
$limit = 300;                                  // limite counter from Project Online (projects)
$skipper = 0;                                  // skipper counter
$topper  = $limit;                            // topper counter
$total_registro = 0;
$ROUTINE = "Projetos";
$start = date('Y-m-d G:i:s');
do {
        // Sharepoint PWA Server API
        $url = 'https://YOUR-SHAREPOINT-DOMAIN.sharepoint.com/sites/pwa/_api/projectdata/$ROUTINE';
        $client = connectSPO($url,$username,$password);
        $options = array(
                      'list' => '?$format=json&$skip='.$skipper.'&$top='.$topper,
                      'id' => NULL,
                      'method' => 'GET'
                   );
        $content = $client->getHeaders($options);
        $total_registro += sizeof($content->value);
        for ($i=0;$i<sizeof($content->value);$i++) {
            $data = object_2_array($content->value[$i]);
            // Print data from server
            var_dump($data);
        }
 if (sizeof($content->value) == 0) break;
    $skipper += $limit;
    ++$i;
} while (1);
$end = date('Y-m-d G:i:s');
echo "Starts at $start time";
echo "Ends at $end time";
function object_2_array($result)
{
    $array = array();
    foreach ($result as $key=>$value)
    {
        $newKey = toASCII(utf8_decode($key));
        if (is_object($value))
        {
            $array[$newKey]=object_2_array($value);
        }
        elseif (is_array($value))
        {
            $array[$newKey]=object_2_array($value);
        }
        else
        {
            $array[$newKey]=$value;
        }
    }
    return $array;
}
?>