3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $test = "test"; $test['tester'] = 'cool'; var_dump($test);
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: Illegal string offset 'tester' in /in/R99MK on line 3 string(4) "cest"
Output for 4.3.0 - 5.3.29, hhvm-3.10.0 - 3.12.0
string(4) "cest"