If you want to use a php variable in Laravel blade engine, you can do like this. Add this
@php($x=0)
in your blade , where x is your variable. You can initialize as you want. You can use the variable on the blade, even use it as an increment or decrement.
If you want to use $x in your blade in foreach use like below
@foreach($var as $v)
{{$x++}}
@endforeach
Of course you can also do
{{$x--}}
You must not forget to use double curly braces.