3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(NAN, NAN < NAN, NAN > NAN, NAN > 0.0, NAN < 0.0, NAN == NAN /* the only comparison that seems correct */); echo "\n----\n\n"; var_dump(INF, INF < INF, INF > INF, INF == INF); ?/php>
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '?' in /in/t7LCI on line 7
Process exited with code 255.
preferences:
181.28 ms | 1395 KiB | 65 Q