<?php
$array = [[3,3], [2,3], [1,2], [1,3],[2,3]];
usort($array, function ($a, $b) { return $a[0] <=> $b[0] ?: $a[1] <=> $b[1]; });
print_r($array);
- Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
- Array
(
[0] => Array
(
[0] => 1
[1] => 2
)
[1] => Array
(
[0] => 1
[1] => 3
)
[2] => Array
(
[0] => 2
[1] => 3
)
[3] => Array
(
[0] => 2
[1] => 3
)
[4] => Array
(
[0] => 3
[1] => 3
)
)
- Output for 8.3.5
- Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Array
(
[0] => Array
(
[0] => 1
[1] => 2
)
[1] => Array
(
[0] => 1
[1] => 3
)
[2] => Array
(
[0] => 2
[1] => 3
)
[3] => Array
(
[0] => 2
[1] => 3
)
[4] => Array
(
[0] => 3
[1] => 3
)
)
preferences:
171.06 ms | 403 KiB | 177 Q