as laravel doc says: If you need to process a lot (thousands) of Eloquent records, using the chunk command will allow you to do without eating all of your RAM:
so what about pagination?
for example is:
DB::table('users')->paginate(15)
same as
User::chunk(15, function($users){foreach ($users as $user){..}});
in memory usage?
These methods have a different usecase. I assume you know how paginate works.
But "chunk" retrieves not only 15 entries, but all entries in "packets" of 15 entries. So your ram only loads 15 entries at the same time. But in the end, it will have loaded all entries of the query.
@thoasty thanks, but the thing i wanted to know is that does pagination work like chunk in the background(chunks result and retrieves data per page not all of the data at once)
when you talked about "how paginate works" i found this question and sounds they are same in this case https://laravel.io/forum/08-13-2016-how-pagination-works
When you paginate the results it will add a LIMIT to the SQL query which will only retrieve at most the number of results that fit on one page
So you'll only ever query for 15 results if you've called ->paginate(15)
Chunk will retrieve all the results, but only 15 at a time, to save the memory as you've said
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