3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = "b"; echo ++$a; $a = "abc"; echo ++$a; $a = "a4\n"; echo ++$a; $a = "a4b1"; echo ++$a;
based on LS7kK
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
cabda4 a4b2