3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<??>foo<?=$foo?>bar
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
foo Notice: Undefined variable: foo in /in/8S7Xh on line 1 bar
Output for 4.3.0 - 5.3.29
<??>foo<?=$foo?>bar