3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo sprintf('%s_%d', 'TAG', 12);
based on r35uC
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
TAG_12
Output for hhvm-3.10.0

Process exited with code 153.