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Bugs & Features
<?php var_dump(NaN != NaN);
Output for 7.2.0
Warning: Use of undefined constant NaN - assumed 'NaN' (this will throw an Error in a future version of PHP) in /in/TTT8j on line 3 Warning: Use of undefined constant NaN - assumed 'NaN' (this will throw an Error in a future version of PHP) in /in/TTT8j on line 3 bool(false)
Output for 5.3.20 - 7.1.10
Notice: Use of undefined constant NaN - assumed 'NaN' in /in/TTT8j on line 3 Notice: Use of undefined constant NaN - assumed 'NaN' in /in/TTT8j on line 3 bool(false)