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@ 2017-03-07T15:31:11Z

<?php
/* wise bits */
const A = 0b00000001;
const B = 0b00000010;

$mask = A | B;

var_dump($mask & A,
         $mask & B);
         
$mask &= ~A;

var_dump($mask & A,
         $mask & B);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

27.91 ms | 404 KiB | 5 Q