3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php printf('%1$d %1$b %1$f %1$s', 10.1);
Output for 4.3.5 - 7.1.0
10 1010 10.100000 10.1
Output for 4.3.0 - 4.3.4
10 1010 10.000000 10