Level 102
$collection->sort(function($a, $b) {
if ($a == $b) {
return 0;
}
return ($a > $b) ? -1 : 1;
});
1 like
Oct 16, 2019
12
Level 14
How to sort a collection in descending order?
Laravel collections has a sort() method to sort a collection (but only in ascending order). Unfortunately I can't find a way to sort in a descending order. There is no sortDesc() method and the sort method doesn't allow to pass a descending parameter.
Any help would be much appreciated.
I can only sort it in ascending order...
$sorted = $collection->sort();
Result:
Collection {#1884
#items: array:10 [
"GTA 5" => 1
"CS" => 1
"Trackmania" => 1
"Doom" => 3
"Quake Live" => 4
"NHL" => 5
]
}
Level 14
@sinnbeck thanks, that worked! I don't understand why there isn't a sortDesc() method, it should be added to the framework.
Level 73
@martinzeltin actually there is, it is called sortByDesc()
https://laravel.com/docs/master/collections#method-sortbydesc
if you've checked the docs.
1 like
Level 59
There's a sortByDesc() method on the Collection instance.
1 like
Level 102
Put this in a service provider :)
Collection::macro('sortDesc', function () {
$this->sort(function($a, $b) {
if ($a == $b) {
return 0;
}
return ($a > $b) ? -1 : 1;
});
});
Level 102
@nakov @jeffreyway I do believe sortBy need a key to sort by?
Level 73
@sinnbeck yes, you are right.
Level 14
@jeffreyway but sortBy requires a key/field
Level 14
@sinnbeck If I put that in a service container and then Laravel releases with a build-in sortDesc won't I have a conflict?
Level 102
@martinzeltin yes but I am unsure of how it will handle it. For fun you could overwrite another method and see if laravel blows up 😊
Level 5
@sinnbeck your macro is returning nothing, make sure it returns something :D
Collection::macro('sortDesc', function () {
return $this->sort(function($a, $b) {
if ($a == $b) {
return 0;
}
return ($a > $b) ? -1 : 1;
});
});
Level 1
You can actually call sortBy or sortByDesc with null for the callback/key. So for a simple sortDesc you can just use sortByDesc(null)
3 likes
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