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@ 2023-03-12T06:25:42Z

<?php

$arr = [
    'deep' => [
        'bar' => 'foo',
    ],
];

foreach($arr['deep'] ?? [] as &$value) {
    $value = 'x';
}

var_dump('x' === $arr['deep']['bar']);

foreach($arr['deep'] as &$value) {
    $value = 'x';
}

var_dump('x' === $arr['deep']['bar']);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

102.56 ms | 404 KiB | 5 Q