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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_replace('/(nÖdkåpa)/i', '$1 xD', 'nödkåpa blabla'));
based on MkjN6
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
string(16) "nödkåpa blabla"
Output for hhvm-3.10.0

Process exited with code 153.