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@ 2021-04-12T13:23:50Z

<?php

$foo = [
    '9' => 'bar'
];

var_dump(array_keys($foo));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_keys: documentation ( source)

preferences:dark modelive previewkey bindings

27.69 ms | 405 KiB | 5 Q