public function init($config)
{
if (!function_exists('xcache_isset')) {
throw new TConfigurationException('xcache_extension_required');
}
$enabled = (int) ini_get('xcache.cacher') !== 0;
$var_size = (int) ini_get('xcache.var_size');
if (!($enabled && $var_size > 0)) {
throw new TConfigurationException('xcache_extension_not_enabled');
}
parent::init($config);
}