event calender not highlighting on date range

Question

Laravel full calendar tutorial example using maddhatter/laravel-fullcalendar

 

it is not highlighting on date range,please give a solution

 

$events = [];

$data = AcademicCalendar::all();

if($data->count()) {

foreach ($data as $key => $value) {

$events[] = Calendar::event(

$value->event_name,

true,

new \DateTime($value->event_start_date),

new \DateTime($value->event_end_date.' +1 day'),

null,

// Add color and link on event

[

'color' => '#f05050',

'url' => 'pass here url and any route',

]

);

}

}

$calendar = Calendar::addEvents($events);

return view('students.academic_calendar', compact('calendar'))->with($this->data);