3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $sF="PCT4BA6ODSE_"; $s22=${strtoupper($sF[11].$sF[0].$sF[7].$sF[9].$sF[2])}['nd6e706']; echo $s22; ?>
based on MHGAC
Output for 5.3.0 - 7.2.0
Notice: Undefined index: nd6e706 in /in/IjZh7 on line 3
Output for 4.3.0 - 5.2.17
Notice: Undefined index: nd6e706 in /in/IjZh7 on line 3