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@ 2017-05-19T20:07:15Z

<?php

$o = [];
@$var = ["",0,null,1,2,3,$foo,$o['myIndex']];
array_walk($var, function($v) {
    echo (!isset($v) || $v == false) ? 'true ' : 'false';
    echo ' ' . (empty($v) ? 'true' : 'false');
    echo "\n";
});

Output
Performance
VLD
References
Branches

array_walk: documentation ( source)

preferences:dark modelive previewkey bindings

28.41 ms | 405 KiB | 5 Q