3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2025-09-08T10:02:39Z

<?php

$arr = [];
$arr[null] = 1;
var_dump($arr);

$arr = [];
$arr[''] = 1;
var_dump($arr);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

24.99 ms | 404 KiB | 5 Q