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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(is_nan((float)'NAN'));
based on stR0i
Output for 4.3.10 - 4.4.9, 5.0.3 - 5.6.30, hhvm-3.10.1 - 3.13.2, hhvm-3.20.2 - 3.22.0, 7.0.13 - 7.3.0beta1
bool(false)
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.2, hhvm-3.15.4 - 3.19.2, 7.0.0 - 7.0.12
bool(true)