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<?php
/**
 * 记录日志
 * @param        $message
 * @param string $level
 * @param int    $type
 * @param string $destination
 * @param string $extra
 */
function log($message, $level = 'err', $type = 3, $destination = '', $extra = '') {
	$dir = DT_ROOT . '/file/sqllog/'.date('Y-m');
		if (empty($destination)) {
			dir_create($dir);
			$destination = $dir .'/'.date('Y-m-d') . '.log';
		}

		//检测日志文件大小，超过配置大小则备份日志文件重新生成
		if (is_file($destination) && floor(1024 * 1024) <= filesize($destination))
			rename($destination, dirname($destination) . '/' . date('H_i_s') . '-' . basename($destination));

		$now = date('[ c ]');
		error_log("[" . (($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '127.0.0.1') . "]{$now} {$level}: {$message}\r\n", $type, $destination, $extra);
}