用户id取模分表获取数据

public static function get_table_name($table_prefix,$lender_id,$mod){
      
         if(empty($table_prefix) || empty($lender_id) || empty($mod)){
           return FALSE;
        }
         $table_prefix = trim($table_prefix);
        $lender_id = intval($lender_id);
        $mod = intval($mod);
       $table_name = $table_prefix.'_'.$lender_id%$mod;
      return $table_name;
      
  }