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@ 2019-10-23T20:09:07Z

<?php

$object = new ArrayObject();
$object['foo'] = 'bar';
var_dump(array_key_exists('foo', $object));

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

37.04 ms | 404 KiB | 5 Q