How to access the nth item in a Laravel collection? -

i guess breaking rules deliberately making duplicate question...

the other question has accepted answer. solved askers problem, did not answer title question.

let's start beginning - first() method implemented approximately this:

foreach ($collection $item)     return $item; 

it more robust taking $collection[0] or using other suggested methods.

there might no item index 0 or index 15 if there 20 items in collection. illustrate problem, let's take collection out of docs:

$collection = collect([     ['product_id' => 'prod-100', 'name' => 'desk'],     ['product_id' => 'prod-200', 'name' => 'chair'], ]);  $keyed = $collection->keyby('product_id'); 

now, have reliable (and preferably concise) way access nth item of $keyed?

my own suggestion do:

$nth = $keyed->take($n)->last(); 

but give wrong item ($keyed->last()) whenever $n > $keyed->count(). how can nth item if exists , null if doesn't first() behaves?

edit

to clarify, let's consider collection:

$col = collect([     2 => 'a',     5 => 'b',     6 => 'c',     7 => 'd']); 

first item $col->first(). how second?

$col->nth(3) should return 'c' (or 'c' if 0-based, inconsistent first()). $col[3] wouldn't work, return error.

$col->nth(7) should return null because there no seventh item, there 4 of them. $col[7] wouldn't work, return 'd'.

you rephrase question "how nth item in foreach order?" if it's more clear some.

i guess faster , more memory-efficient way use slice() method:

$collection->slice($n, 1);