public static function explode($glue, $data, $limit = null)
	{
	    if (is_array($data)) {
	        $result = [];
	        foreach ($data as $k => $v) {
	            $result = array_merge($result, static::explode($glue, $v, $limit));
	        }
	        return $result;
	    } elseif (is_string($data)) {
	        if (is_array($glue)) {
	            $glue = implode('', $glue);
	        }
	        $data = preg_split('/[' . $glue . ']+/', $data, $limit);
	        $data = (array) $data;
	        $data = array_map(function ($v) { return trim($v); }, $data);
	    }
	    
	    return $data;
	}