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run code in 200+ php & hhvm versions
Bugs & Features
<?php $class="OC_Settings_asd"; echo str_replace('_', '/', substr($class, 3));
Output for 4.3.1 - 5.6.38, hhvm-3.10.1 - 3.11.1, hhvm-3.13.2, hhvm-3.17.3 - 3.22.0, 7.0.0 - 7.2.11
Settings/asd
Output for hhvm-3.12.14, hhvm-3.15.4

Process exited with code 137.
Output for 4.3.0