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function m60_webloggia_api_curl($method, $params) {
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $params['url']);
  curl_setopt($ch, CURLOPT_TIMEOUT_MS, 300);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  if (variable_get('m60_webloggia_proxy', 0)) {
    curl_setopt($ch, CURLOPT_PROXY, '127.0.0.1:9999');
    curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
  }
  if ($method == 'GET') {
    curl_setopt($ch, CURLOPT_URL, $params['url'] . '?' . $params['request']);
  }
  elseif ($method == 'POST') {
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/xml'));
    curl_setopt($ch, CURLOPT_POSTFIELDS, $params['request']);
  }
  else {
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/xml'));
    curl_setopt($ch, CURLOPT_POSTFIELDS, $params['request']);
  }
  $response = curl_exec($ch);
  if(curl_errno($ch)) {
    watchdog('webloggia', 'Curl request to the webloggia ends with error: @error', array('@error' => curl_error($ch)), WATCHDOG_CRITICAL);
    drupal_set_message(t('Curl request to the webloggia ends with error: @error', array('@error' => curl_error($ch))), 'error');
    curl_close($ch);
    return FALSE;
  }
  elseif(substr($response, 0, 5) != "<?xml") {
    watchdog('webloggia', 'Response from webloggia is not in the xml format', array(), WATCHDOG_CRITICAL);
    drupal_set_message(t('Response from webloggia is not in the xml format', 'error'));
    curl_close($ch);
    return FALSE;
  }
  $xml = simplexml_load_string($response);
  $json = json_encode($xml);
  $data = json_decode($json, TRUE);
  return $data;
}

/**
* Helper that generates a machine name using a provided human readable name.
* 
* @param string $human_name
*   Human readable name.
*
* @return string
*   Machine name cleaned-up of any special chars.
*/
function human_to_machine($human_name) {
  return strtolower(preg_replace(array(
    '/[^a-zA-Z0-9]+/',
    '/-+/',
    '/^-+/',
    '/-+$/',
  ), array('-', '-', '', ''), $human_name));
}

array_chunk($rows, 2); — Разбивает массив на части (В данном случае по парам)

<?php

if (empty($user->uid)) {
  watchdog('anonymous_session', '<pre>@data</pre>', array('@data' => print_r($_SESSION, TRUE)));
}