/**
* Based heavily on Zend_Application->_loadConfig
* Load configuration file of options.
*
* @param string $file
* @throws Zend_Application_Exception When invalid configuration file is provided
* @return array
*/
protected function _loadConfig($file)
{
if (!Zend_Loader::isReadable($file)) {
return;
}
$environment = $this->_bootstrap->getApplication()->getEnvironment();
$suffix = strtolower(pathinfo($file, PATHINFO_EXTENSION));
switch ($suffix) {
case 'ini':
$config = new Zend_Config_Ini($file, $environment);
break;
case 'xml':
$config = new Zend_Config_Xml($file, $environment);
break;
case 'php':
case 'inc':
$config = (include $file);
if (!is_array($config)) {
throw new Zend_Application_Exception('Invalid configuration file provided; PHP file does not return array value');
}
return $config;
default:
throw new Zend_Application_Exception('Invalid configuration file provided; unknown config type');
break;
}
return $config->toArray();
}
