3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define ("FOO", 34); $str="bla bla ${FOO} bar"; echo $str;
Output for 5.0.4 - 5.6.21, hhvm-3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: FOO in /in/KfDKA on line 4 bla bla bar
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: FOO in /in/KfDKA on line 4 bla bla bar