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@ 2021-01-29T08:18:17Z

<?php

$array = array(
    'string key' => 'aaa',
    '1234567890' => 'bbb'
);
var_dump(array_keys($array));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive previewkey bindings

109.64 ms | 1411 KiB | 5 Q