3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = sprintf('%1$s - %2$s', 100, '%s'); var_dump($str);
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.17.3, 7.0.0 - 7.2.0
string(8) "100 - %s"