i want to sort an array in php

Question

Array
(
    [0] => Array
        (
            [count] => 9
            [slug] => concediat-reangajat
        )

    [1] => Array
        (
            [count] => 7
            [slug] => salarii-5togo
        )

    [2] => Array
        (
            [count] => 10
            [slug] => piata-fortei-munca
        )

    [3] => Array
        (
            [count] => 3
            [slug] => productivitate-angajati
        )

    [4] => Array
        (
            [count] => 1
            [slug] => stocare-date
        )

    [5] => Array
        (
            [count] => 4
            [slug] => infrastructura-leadership
        )

    [6] => Array
        (
            [count] => 2
            [slug] => airbnb-uber
        )

    [7] => Array
        (
            [count] => 5
            [slug] => salarii-productivitate
        )

    [8] => Array
        (
            [count] => 2
            [slug] => ceo-resurse-umane
        )

    [9] => Array
        (
            [count] => 3
            [slug] => hr-ceo
        )

    [10] => Array
        (
            [count] => 1
            [slug] => burnout-tratament
        )

    [11] => Array
        (
            [count] => 1
            [slug] => angajati-vanzarea-afacerii
        )

    [12] => Array
        (
            [count] => 1
            [slug] => job-linkedin
        )

    [13] => Array
        (
            [count] => 1
            [slug] => primul-faliment
        )

    [14] => Array
        (
            [count] => 3
            [slug] => salariu-mic
        )

    [15] => Array
        (
            [count] => 1
            [slug] => varsta-programatori
        )

)


i want to sort this array based on decending order of count

this array contains arrays of data count and a slug variable i want to sort whole array based on descending order of count how i can sort this.. anybody can help me i tried usort,ksort etc am new in programming not getting a solution please help me i tried for a solution but its didnt work anybody can solve it?

A l w a y s S u n n y · Accepted Answer · 2019-10-19T16:03:05.873

2

usort with callback will work for you.

usort($array, function($a, $b) {
    return $b['count'] - $a['count']; # $a['count'] - $b['count']; will sort asc
});

WORKING DEMO: https://3v4l.org/SUa2F

OR do simple with arsort($array);

WORKGING DEMO: https://3v4l.org/bnWuo

edited Oct 19 '19 at 16:03

answered Oct 19 '19 at 15:55

A l w a y s S u n n y

36,497
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then how print the array? – ANGELA Oct 19 '19 at 15:57
$lattt=usort($latest, function($a, $b) { return $a['count'] - $b['count']; }); echo '
```
'.print_r($lattt,true).'
```
'; not printing
– ANGELA Oct 19 '19 at 15:58
@ANGELA have a look on my working demo :) – A l w a y s S u n n y Oct 19 '19 at 15:59
`usort()` works on the array as it is, so after sorting - `print_r($latest)` and not the return value. – Nigel Ren Oct 19 '19 at 16:01
@Always sunny Thank you so much, how it can be in descending order? – ANGELA Oct 19 '19 at 16:02
@AlwaysSunny arsort worked for descending, Thank you so much <3 <3 <3 <3 <3 – ANGELA Oct 19 '19 at 16:03
@ANGELA glad it helps you somehow. Best of luck :) – A l w a y s S u n n y Oct 19 '19 at 16:07
@ANGELA no I was offline, do you need anything? – A l w a y s S u n n y Oct 20 '19 at 03:23
@AlwaysSunny yes i have a doubt,how we delete a particular line from a text file in php – ANGELA Oct 20 '19 at 03:55

score 0 · Answer 2 · answered Oct 19 '19 at 16:24

Reverse sort by count descending (and name ascending for like counts):

<?php

$items =
[
    ['count'=>2, 'name' => 'Janitor'],
    ['count'=>5, 'name' => 'Plumber'],
    ['count'=>1, 'name' => 'Scrubber'],
    ['count'=>3, 'name' => 'Winkle Picker'],
    ['count'=>3, 'name' => 'Window Cleaner']
];

usort($items, function($a, $b) {
    $compare = $b['count'] <=> $a['count'];
    if($compare == 0)
        $compare = $a['name'] <=> $b['name'];

    return $compare;
});

var_export($items);

Output:

array (
    0 => 
    array (
      'count' => 5,
      'name' => 'Plumber',
    ),
    1 => 
    array (
      'count' => 3,
      'name' => 'Window Cleaner',
    ),
    2 => 
    array (
      'count' => 3,
      'name' => 'Winkle Picker',
    ),
    3 => 
    array (
      'count' => 2,
      'name' => 'Janitor',
    ),
    4 => 
    array (
      'count' => 1,
      'name' => 'Scrubber',
    ),
  )

i want to sort an array in php

2 Answers2