/**
* @return Google_IO_Abstract IO implementation
*/
public function getIo()
{
if (!isset($this->io)) {
$class = $this->config->getIoClass();
$this->io = new $class($this);
}
return $this->io;
}
/**
* Construct the Google Client.
*
* @param $config Config or string for the ini file to load
*/
public function __construct($config = null)
{
if (!ini_get('date.timezone') && function_exists('date_default_timezone_set')) {
date_default_timezone_set('UTC');
}
if (is_string($config) && strlen($config)) {
$config = new Google_Config($config);
} else {
if (!$config instanceof Google_Config) {
$config = new Google_Config();
if ($this->isAppEngine()) {
// Automatically use Memcache if we're in AppEngine.
$config->setCacheClass('Google_Cache_Memcache');
}
if (version_compare(phpversion(), "5.3.4", "<=") || $this->isAppEngine()) {
// Automatically disable compress.zlib, as currently unsupported.
$config->setClassConfig('Google_Http_Request', 'disable_gzip', true);
}
}
}
if ($config->getIoClass() == Google_Config::USE_AUTO_IO_SELECTION) {
if (function_exists('curl_version')) {
$config->setIoClass("Google_Io_Curl");
} else {
$config->setIoClass("Google_Io_Stream");
}
}
$this->config = $config;
}