3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo "foo {$__SERVER['REQUEST_URI']}";
Output for 5.5.0 - 7.1.0
Notice: Undefined variable: __SERVER in /in/t7jBj on line 2 foo
Output for 4.3.0 - 5.4.45
foo