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run code in 150+ php & hhvm versions
Bugs & Features
<?php echo +NaN; // ahoj
Output for 7.1.0
Notice: Use of undefined constant NaN - assumed 'NaN' in /in/RtC6E on line 3 Warning: A non-numeric value encountered in /in/RtC6E on line 3 0
Output for 4.3.0 - 5.0.5, 5.1.1 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.0.14
Notice: Use of undefined constant NaN - assumed 'NaN' in /in/RtC6E on line 3 0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/RtC6E on line 6
Process exited with code 255.