foreach($optionArr as $key => $value){
   $isSelected =""; //added this line
   if($_REQUEST['opt_side_'.$cside] == $value){
     $isSelected = "selected";
   }
   echo ''.$key.'';
}


//Laravel

@php
$optionArr = array ('Available' => 'Available', 'Not Available' => 'Not Available',  'Sold Out' => 'Sold Out',);
@endphp

  @foreach ($optionArr as $key =>$value)
    @if ( $eventPrice->status == $value)
        {{$key}}
    @else
        {{$key}}
    @endif
  @endforeach