3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php ini_set('display_errors', 1); error_reporting(-1); echo $a;
Output for 5.2.3 - 7.1.0
Notice: Undefined variable: a in /in/GpqDP on line 3
Output for 5.0.4 - 5.2.2
<br /> <b>Notice</b>: Undefined variable: a in <b>/in/GpqDP</b> on line <b>3</b><br />
Output for 4.3.0 - 5.0.3
<br /> <b>Notice</b>: Undefined variable: a in <b>/in/GpqDP</b> on line <b>3</b><br />