How to sort a multidimensional array by First Name in php?

Question

I'm just trying to sort a multidimensional array by firstName. I've been doing a lot of research and can't really find anything similar to my issue.

(
[0] => Array
    (
        [lastName] => Mark
        [firstName] => White
    )

[1] => Array
    (
        [lastName] => Brown
        [firstName] => Peter

[2] => Array
    (
        [lastName] => Paul
        [firstName] => Vo
    )

[3] => Array
    (
        [lastName] => MCLwous
        [firstName] => Luis
    )

[4] => Array
    (
        [lastName] => Zumilia
        [firstName] => Mario
    )

[5] => Array
    (
        [lastName] => Carl
        [firstName] => Burns
    )
)

@jszobody I have already looked at that one and can't really figure it out how to implemented on my task :( — Devmix
– Devmix, Commented Jun 15, 2016 at 15:15

Ihor Burlachenko · Accepted Answer · 2016-06-15 15:21:25Z

2

You can use usort function which sorts arrays using a user-defined comparison function:

usort($array, function($v1, $v2) { return strcmp($v1['firstName'], $v2['firstName']); });

Or you can use sorted function from Nspl:

use function \nspl\a\sorted;
$sorted = sorted($array, 'firstName');

answered Jun 15, 2016 at 15:21

Ihor Burlachenko

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2 Comments

Devmix Over a year ago

@lhor Burlachenko Thanks so much!!

beeglebug Over a year ago

I really would recommend using Laravel Collections if you have access to them, they are super nice, and make for much cleaner code than using the raw php.

Community · Accepted Answer · 2020-06-20 09:12:55Z

2

As you tagged the question laravel, I'll give you an answer that uses that framework, specifically the methods available to you when using Collections:

$sorted = collect($arr)->sortBy('firstName');

Note, that will return a laravel Collection, rather than a php array.

If you then wanted the sorted data back out as a plain php array, you would add a call to toArray at the end:

$sorted = collect($arr)->sortBy('firstName')->toArray();

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Jun 15, 2016 at 15:25

beeglebug

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Comments

buddhiv · Accepted Answer · 2016-06-15 15:23:32Z

0

First idea I have is to manually check each 'firstName' and keep firstName and userId in a separate dictionary. Then rearrange the elements on another empty array using the sorted dictionary (Sorting a dictionary by value or key is possible. I have seen answers to that). That's a quick answer. :)

answered Jun 15, 2016 at 15:23

buddhiv

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