3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2015-12-29T10:53:41Z

<?php
 $_SESSION['fr_nick']   = null;

var_dump(
    [
         isset( $_SESSION['fr_nick'] ),
         array_key_exists('fr_nick', $_SESSION)
    ]
    );

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive preview

52.89 ms | 402 KiB | 5 Q