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@ 2017-07-10T15:57:14Z

<?php

$basket = [
    'Items' => [
        [
            'd' => 'e',
            'b' => 'c',
            'a' => 'b'
        ],
        [
            'a' => 'b',
            'd' => 'e',
            'b' => 'c'
        ],
        [
            'd' => 'e',
            'a' => 'b',
            'b' => 'c'
        ]
    ],
];


if (isset($basket['items']) && is_array($basket['items'])) {
    array_walk($basket['items'], 'ksort');
}

var_dump($basket);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_walk: documentation ( source)

preferences:dark modelive preview

37.61 ms | 402 KiB | 5 Q