laravel - Paginate merged queries -

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i have 2 queries:

$posts = post::all();  $comments = comment:all();

which later merge:

$merge = $posts->merge($comments);  $all = $merge->sortbydesc(function($result) {     return $result->created_at; });

how can paginate result of merge? doing $all->paginate(25) not work.

laravel 5:

in laravel 5 can done instantiating paginator:

$paginator = new illuminate\pagination\paginator($all, $perpage, $currentpage);

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