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@ 2024-01-21T20:31:26Z

<?php

$array = [
    'user 1' => [
        ['item 4' => '11385'],
        ['item 2' => '144268'],
        ['item 1' => '65774'],
        ['item 9' => '98523'],
    ],
    'user 5' => [
        ['item 8' => '239233'],
    ],
    'user 2' => [
        ['item 4' => '53718'],
        ['item 1' => '154687'],
    ],
];

ksort($array);
foreach ($array as &$v) {
    usort(
        $v,
        fn($a, $b) => key($a) <=> key($b)
    );
}
var_export($array);

Output
Performance
VLD
References
Branches

var_export: documentation ( source)
key: documentation ( source)
usort: documentation ( source)
ksort: documentation ( source)

preferences:dark modelive previewkey bindings

69.73 ms | 1057 KiB | 5 Q