3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(NAN); var_dump(1.0); var_dump(INF); var_export(NAN); echo PHP_EOL; var_export(1.0); echo PHP_EOL; var_export(INF); echo PHP_EOL;
Output for 7.0.3 - 7.0.32, 7.1.0 - 7.1.24, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
float(NAN) float(1) float(INF) NAN 1.0 INF
Output for 7.0.2
float(NAN) float(1) float(INF) NAN.0 1.0 INF.0
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.1
float(NAN) float(1) float(INF) NAN 1 INF
preferences:
212.48 ms | 402 KiB | 289 Q