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run code in 200+ php & hhvm versions
Bugs & Features
<?php $tt = '<root></root>'; $result = simplexml_load_string($tt); var_dump($result);
based on tp7u1
Output for 5.6.0 - 5.6.7, 5.6.9 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
object(SimpleXMLElement)#1 (0) { }
Output for 5.6.8

Process exited with code 137.