3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $needle = 'Hello'; $replacement = 'hello'; echo ctype_upper($needle[0]); if (ctype_upper($needle[0])) { $replacement = ucfirst($replacement); } echo $needle[0]; echo $replacement;
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1HHello