how to set select option value dynamically in php

1foreach($optionArr as $key => $value){
2   $isSelected =""; //added this line
3   if($_REQUEST['opt_side_'.$cside] == $value){
4     $isSelected = "selected";
5   }
6   echo '<option value="'.$value.'"'.$isSelected.'>'.$key.'</option>';
7}
8
9
10//Laravel
11
12@php
13$optionArr = array ('Available' => 'Available', 'Not Available' => 'Not Available',  'Sold Out' => 'Sold Out',);
14@endphp
15<select id="{{ $eventPrice->id }}" class="drop form-control">
16  @foreach ($optionArr as $key =>$value)
17    @if ( $eventPrice->status == $value)
18    	<option value="{{$value}}" class="" selected>{{$key}}</option>
19    @else
20    	<option value="{{$value}}" class="">{{$key}}</option>
21    @endif
22  @endforeach
23</select>