3v4l.org
run code in 500+ PHP versions simultaneously
sponsor
bughunt
search
recent
about
@ 2026-01-07T13:56:13Z
<?php array_keys(strict: true);
Enable javascript to submit
You have javascript disabled. You will not be able to edit any code.
Output
Performance
VLD
References
Branches
array_keys:
documentation
(
source
)
preferences:
dark mode
live preview
ace
vim
emacs
key bindings
54.65
ms |
765
KiB |
5
Q