How to remove array from Request class on laravel 5

Data

"image_comment" => array:4 [▶]
"album_photo" => array:3 [▶]

I cannot merge this 2 array since they're not equal in count. i want to remove the last array of image_comment. how can i do this? ive tried array_pop but it does work also laravel helpers for array. i prefer php for the solution for this instead javascript. thanks

via Chebli Mohamed