3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php printf('%1e', M_PI);
based on YG1sU
Output for 5.2.1 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
3.141593e+0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.2 - 5.2.0
3.14159e+0
Output for 4.3.0 - 4.3.1
3.14159e+