3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string="M"; $last=array($strig,$strg,$string,$stg); echo $last; switch($last) { case 'k': case 'K': echo "k"; break; case 'm': case 'M': echo "k"; break; default: echo "o"; } ?>
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: strig in /in/OmksK on line 3 Notice: Undefined variable: strg in /in/OmksK on line 3 Notice: Undefined variable: stg in /in/OmksK on line 3 Notice: Array to string conversion in /in/OmksK on line 4 Arrayo
Output for 5.0.4 - 5.3.29
Notice: Undefined variable: strig in /in/OmksK on line 3 Notice: Undefined variable: strg in /in/OmksK on line 3 Notice: Undefined variable: stg in /in/OmksK on line 3 Arrayo
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: strig in /in/OmksK on line 3 Notice: Undefined variable: strg in /in/OmksK on line 3 Notice: Undefined variable: stg in /in/OmksK on line 3 Arrayo