April
Multiple line data

May
Multiple line data

May
multiple line data

April
Multiple line data

May
Multiple line data1
Multiple line data2

$result = Select * from table_name order by month; // this is simple query i have added but there are many joins but consider this for now

$schedule = $result['data'];
for($i = 0; $i < count($schedule); $i++)
        {
<li>
                    <div class="accordion-container">
                            <a href="#" class="accordion-toggle">{$schedule[$i]['month']}<span class="toggle-icon"><i class="fa fa-plus-circle"></i></span></a>
                        <div class="accordion-content">
                            <div class="col-xs-12">
                               {$firstColumn}
                               <div onclick="{$onclick}" class="col-xs-7 col-sm-9 col-md-9 col-lg-9 detaillist-txt cursor vertical-align p-l-0 p-r-0 m-l-10" >
                                   <ul>
                                        <li class="cursor font-color m-b-5">{$schedule[$i]['ename']}</li>
                                       {$eventSubName}
                                       {$eventDate}
                                       {$eventTime}
                                       {$eventLocation}
                                       {$eventDateLabel}
                                       {$eventNumber}
                                   </ul>
                               </div>
                           </div>
                        </div>
                    </div>
                </li>
}