3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php strtoupper ( ); ?>
based on hRFt1
Output for 5.3.0 - 7.2.0
Warning: strtoupper() expects exactly 1 parameter, 0 given in /in/dBNMG on line 2
Output for 4.3.0 - 5.2.17
Warning: Wrong parameter count for strtoupper() in /in/dBNMG on line 2