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@ 2019-09-12T16:13:18Z

<?php

$foo['bar'] = null;

var_dump(
    array_key_exists('bar', $foo),
    isset($foo['bar'])
);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

149.2 ms | 1447 KiB | 5 Q