3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php chmod("/in", 0777); ?>
Output for 5.6.28, 7.0.14 - 7.1.0
Warning: chmod(): Operation not permitted in /in/8HWJN on line 2
Output for 4.3.2 - 5.6.22, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.7
Warning: chmod(): Read-only file system in /in/8HWJN on line 2
Output for 4.3.0 - 4.3.1
Warning: chmod() [http://www.php.net/function.chmod]: Read-only file system in /in/8HWJN on line 2