Sort by array gives empty array laravel-CodePudding

I have 2 array when one of the array is empty and sortby then it gives empty array

$first = [];
$second = ['created_at'=>2];
$third= [$first , $second];
$res = collect($third)->sortBy('created_at')->first();
dd($res);

if both array have value then it proper run. issue comes when one of array is empty. i need other array which is not empty. Thanks

CodePudding user response：

replace :

$res = collect($third)->sortBy('created_at')->first();

by:

$res = collect($third)->sortBy('created_at')->filter(function($value) {return !empty($value);})->first();

this will remove any empty array from the result of the sort

CodePudding user response：

Try like this:

$first = collect([]);
$second = collect(['created_at'=>2]);

$third = $first->push($second)->sortBy('created_at')->first();