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run code in 150+ php & hhvm versions
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<?php $journalName= "ONN &profit non"; $journalName = strtolower(preg_replace('/\s+/', '_', $journalName)); print_r($journalName);
based on 5qc91
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
onn_&profit_non
Output for hhvm-3.10.0

Process exited with code 153.