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@ 2017-03-09T20:19:08Z

<?php

$emailHash = '';

var_dump($emailHash[0] ?? '');

var_dump('!' === $emailHash[0] ?? '');

var_dump('!' === ($emailHash[0] ?? ''));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

69.79 ms | 1441 KiB | 5 Q