sorting array in php by key in another array

Question

Possible Duplicate:
Sort multidimensional Array by Value (2)

array(200) {
  [0]=>
  array(5) {
    ["cat"]=>
    string(6) "Movies"
    ["name"]=>
    string(22) "Life.of.Pi.2012.DVDSCR"
    ["url"]=>
    string(62) "https://thepiratebay.se/torrent/8036528/Life.of.Pi.2012.DVDSCR"
    ["seed"]=>
    string(5) "33981"
    ["leech"]=>
    string(5) "18487"
  }
  [1]=>
  array(5) {
    ["cat"]=>
    string(6) "Movies"
    ["name"]=>
    string(41) "Django Unchained 2012 DVDSCR X264 AAC-P2P"
    ["url"]=>
    string(81) "https://thepiratebay.se/torrent/7990804/Django_Unchained_2012_DVDSCR_X264_AAC-P2P"
    ["seed"]=>
    string(5) "34279"
    ["leech"]=>
    string(5) "12256"
  }
...
}

I have such an array as shown above, and I would like to sort this array by seed indicator. How to achieve this in php?

...in particular, most easily done with `usort()` as described in a couple of answers there. — Michael Berkowski, Jan 21 '13 at 00:30

score 3 · Accepted Answer · answered Jan 21 '13 at 00:35

3

You can use usort() like this.

usort($torrentList, function($a, $b) {
    return $a['seed'] - $b['seed'];
});

Where $torrentList is the the array you showed us above. Documentation can be found here.

answered Jan 21 '13 at 00:35

Austin Brunkhorst

20,704
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Congratulations, you beat me to the answer by 14 seconds. +1 – rink.attendant.6 Jan 21 '13 at 00:35
I'm surprised I wasn't the one who was beaten, happens to me more often than not. – Austin Brunkhorst Jan 21 '13 at 00:37
Cheers, it's easier than I thought. – Karolis Mazukna Jan 21 '13 at 00:44

score 0 · Answer 2 · answered Jan 21 '13 at 00:35

0

usort($the_array, function($a, $b) {
    return ($a['seed'] - $b['seed']);
});

answered Jan 21 '13 at 00:35

rink.attendant.6

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sorting array in php by key in another array

2 Answers2