<?php
$array = array(
"Africa" => array(
"Egypt" => array(
"20" => array(
"basicInfo" => array('population' => 663, 'size' => 23)
)
),
"Sudan" => array(
"249" => array(
"basicInfo" => array('population' => 777, 'size' => 45)
)
)
),
"Europe" => array(
"Greece" => array(
"30" => array(
"basicInfo" => array('population' => 12345, 'size' => 97)
)
),
"Netherlands" => array(
"31" => array(
"basicInfo" => array('population' => 2222, 'size' => 33)
)
)
)
);
$array = array_map(function ($arr) {
uasort($arr, function ($a, $b) {
return current($b)['basicInfo']['population'] - current($a)['basicInfo']['population'];
});
return $arr;
}, $array);
print_r($array);
- Output for 7.2.0 - 7.2.34, 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
(
[Africa] => Array
(
[Sudan] => Array
(
[249] => Array
(
[basicInfo] => Array
(
[population] => 777
[size] => 45
)
)
)
[Egypt] => Array
(
[20] => Array
(
[basicInfo] => Array
(
[population] => 663
[size] => 23
)
)
)
)
[Europe] => Array
(
[Greece] => Array
(
[30] => Array
(
[basicInfo] => Array
(
[population] => 12345
[size] => 97
)
)
)
[Netherlands] => Array
(
[31] => Array
(
[basicInfo] => Array
(
[population] => 2222
[size] => 33
)
)
)
)
)
- 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
(
[Africa] => Array
(
[Sudan] => Array
(
[249] => Array
(
[basicInfo] => Array
(
[population] => 777
[size] => 45
)
)
)
[Egypt] => Array
(
[20] => Array
(
[basicInfo] => Array
(
[population] => 663
[size] => 23
)
)
)
)
[Europe] => Array
(
[Greece] => Array
(
[30] => Array
(
[basicInfo] => Array
(
[population] => 12345
[size] => 97
)
)
)
[Netherlands] => Array
(
[31] => Array
(
[basicInfo] => Array
(
[population] => 2222
[size] => 33
)
)
)
)
)
preferences:
173.32 ms | 405 KiB | 191 Q