3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $extras = ''; $extras .= 'Hello'; echo $extras; $boo = 1; if ($boo) { $extras .= ", boo is true!"; } echo $extras;
based on dDNV4
Output for 4.3.0 - 7.2.0
HelloHello, boo is true!