private function _log($level, $message, $name)
{
if ($level > $this->level) {
return;
}
$day = date('Ymd');
$log_file_path = DATA_PATH . "logs/{$name}-{$day}.log";
self::createDir(dirname($log_file_path));
$log_level_name = Logger::$LOG_LEVEL_NAMES[$level];
$content = '[' . date('Y-m-d H:i:s') . '] ' . $log_level_name . ': ' . $message . "\n";
file_put_contents($log_file_path, $content, FILE_APPEND);
}