Laravel Blade checkbox not checked

       @php if(isset($selectedCondCheckbox)) { 
            if($selectedCondCheckbox =='discount_on_total_amount_of_shipping') 
            { echo "checked=checked"; }}@endphp

<input type="radio" name="condition_tab" value="1" class="flat-red" style="position: absolute; opacity: 0;" {{ isset($selectedCondCheckbox) ? $selectedCondCheckbox == 'customer_get_discounts_and_special_offers_on_certain_product_or_categories' ? 'checked=checked' :'' :'' }} >

<input type="radio" name="condition_tab" value="2" class="flat-red" style="position: absolute; opacity: 0;" {{ isset($selectedCondCheckbox) ? $selectedCondCheckbox == 'discount_on_total_amount_of_shipping' ? 'checked=checked' :'' :'' }}>

<input type="checkbox"
        name="active"
        value="active"
        @checked(old('active', $user->active)) />