3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $s = '漢字仮名交じり文'; echo 'strlen: ' . strlen($x); echo 'mb_strlen: ' . mb_strlen ($s);
Output for 5.6.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: x in /in/Uq5IC on line 5 strlen: 0mb_strlen: 8
Output for 5.0.4 - 5.5.36
Notice: Undefined variable: x in /in/Uq5IC on line 5 strlen: 0mb_strlen: 24
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: x in /in/Uq5IC on line 5 strlen: 0mb_strlen: 24