3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5); echo JSON_PRETTY_PRINT; ?>
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
128
Output for 4.3.0 - 5.3.29
Notice: Use of undefined constant JSON_PRETTY_PRINT - assumed 'JSON_PRETTY_PRINT' in /in/OLla0 on line 4 JSON_PRETTY_PRINT