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@ 2016-05-27T18:38:47Z

<?php

$someVar = false;

call_user_func(function() use (& $someVar) {
    $someVar = true;
});

var_dump($someVar);

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

28.52 ms | 404 KiB | 5 Q