3v4l.org

run code in 500+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2026-01-10T12:10:18Z

<?php

$values = [
    '' => 'empty',
    'foo' => 'bar',
];

var_export(isset($values[null]));

Output
Performance
VLD
References
Branches

var_export: documentation ( source)

preferences:dark modelive previewkey bindings

40.51 ms | 700 KiB | 5 Q