PDOCrud Join operation

  
                            $pdocrud = new PDOCrud();
                            $pdocrud->crudTableCol(array("first_name","last_name","user_name","gender"));
                            /**
                            * Add join between tables, supported join condition are "INNER JOIN" & "LEFT JOIN"
                            * @param   string  $joinTableName                             name of table to be joined
                            * @param   string  $joinCondition                             join condition e.g. ("table2.col = table1.col")
                            * @param   string  $joinType                                  type of join (Inner or left join)-default is inner join
                            * return   object                                             Object of class
                            */
                            $pdocrud->joinTable("user_meta", "user_meta.user_id = users.user_id", "LEFT JOIN");
                            echo $pdocrud->dbTable("users")->render();