3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php ob_start(null, 1); $a = ob_get_status(true); echo $a[0]['chunk_size'];
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1
Output for 4.3.0 - 5.3.29
4096