3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = $_REQUEST["abc"]; $b = 10; $c = $a + $b; echo ("$c"); ?>
Output for 5.3.0 - 7.2.0
Notice: Undefined index: abc in /in/viGcI on line 3 10
Output for 4.3.0 - 5.2.17
Notice: Undefined index: abc in /in/viGcI on line 3 10