3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo sprintf('number %1$s %1$s', 'one') ."\n"; echo sprintf('number %2$s %2$s', 'one', 'two');
based on uMpGW
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
number one one number two two