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@ 2018-06-28T23:32:27Z

<?php

class Test implements ArrayAccess
{
    function offsetGet($o){}
    function offsetUnset($o){}
    function offsetSet($o, $v){}

    function offsetExists($o){ var_dump($o);}
}

$arr = new Test;
isset($arr[false]);
isset($arr[0.12345]);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

26.95 ms | 404 KiB | 5 Q