Keeping only the last 3 items in Session array Laravel

tjyoung
tjyoung used Ask the Experts™
on
Hi,
I'm using Laravel and keeping track of recently viewed item ID's in a 'recent' array.
To store them I use: Session::push('recent', $id) when a user visits an item details page.

After visiting a few items, my array when dumped looks like:
array:6 [▼
  0 => "17918"
  1 => "18204"
  2 => "17180"
  3 => "18119"
  4 => "17897"
  5 => "18119"
]

I'm only after the last 3 items (just showing last 3 items you visited). How can I store just the last 3 all the time instead of continually adding to the array? I thought I could just 'use' the last 3 items in the array but as a user continues to visit detail pages, the array will just keep getting larger. I was thinking array_slice perhaps to keep it to 3 but couldn't figure out how to implement in this case. Any suggestions/direction would be great.

Thanks as always.
PS: I'm nearly through this project and never would have made it without all the help I've received on this site. Thanks again.
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Most Valuable Expert 2017
Distinguished Expert 2018
Commented:
array_push the latest item to the array
at the same time array_shift the first item out.
Example
$recent = $request->session()->get('recent');
if (!is_array($recent)) {
   $recent = array();
}
$recent[] = $id;
while (count($recent) > 3)) {
   array_shift($recent);
}
$request->session()->put('recent', $recent);

Open in new window

Author

Commented:
Minor changes for Laravel, but worked great. Thanks!
$recent = Session::get('recent');
      if (!is_array($recent)) {
               $recent = array();
            }
      $recent[] = $id;
      while (count($recent) > 3) {
            array_shift($recent);
      }
      Session::put('recent', $recent);
Most Valuable Expert 2017
Distinguished Expert 2018

Commented:
You are welcome - I was working off https://laravel.com/docs/5.3/session

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial