I want to make date left in blade template?

I have a question guys. How to deal with this code?

{{ is_numeric($a->duration) - \Carbon\Carbon::parse($a->created_at)->diffForHumans() }} days left

Level 75

Returns true if value is a number or a numeric string, false otherwise.

If duration is for example number of days then

{{ $a->created_at->addDays($a->duration)->diffForHumans() }}

Level 1

i want to minus that but doesn't work here. I tried is_numeric() method also.

Level 75

Do you think we know what you want?

{{ now()->diffInDays($a->created_at->addDays($a->duration)) }}

Level 1

I want to substract certain days from posted_at days. I want to get days left to expire for certain post.

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