/**
* Load a configuration file. The file type is determined by its extension.
*
* Supported file types are `ini`, `json`, `yml`, `php`, `csv`
*
* @param string $filename A supported configuration file.
* @throws InvalidArgumentException If the filename is invalid.
* @return mixed The file content.
*/
public function loadFile($filename)
{
if (!is_string($filename)) {
throw new InvalidArgumentException('Translation file must be a string.');
}
if (!file_exists($filename)) {
throw new InvalidArgumentException(sprintf('Translation file "%s" does not exist', $filename));
}
$ext = pathinfo($filename, PATHINFO_EXTENSION);
if ($ext === 'csv') {
return $this->loadCsvFile($filename);
} else {
return parent::loadFile($filename);
}
}
/**
* @return array
*/
public function defaults()
{
$defaults = ['host' => 'localhost', 'port' => 11211, 'persistent' => true, 'weight' => 1];
$defaults = array_merge(parent::defaults(), $defaults);
return $defaults;
}