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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array( 2.0, NaN, 1.0 ); sort($a); var_dump($a);
based on pnCfm
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/deK7Y on line 5 array(3) { [0]=> string(3) "NaN" [1]=> float(1) [2]=> float(2) }
Output for 5.3.22 - 7.1.10
Notice: Use of undefined constant NaN - assumed 'NaN' in /in/deK7Y on line 5 array(3) { [0]=> string(3) "NaN" [1]=> float(1) [2]=> float(2) }