3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(NAN < NAN); // true var_dump(NAN > NAN); // true var_dump(INF < INF); // true var_dump(INF > INF); // true
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.23 - 7.0.33, 7.1.9 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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
bool(false) bool(false) bool(false) bool(false)
Output for 7.0.0 - 7.0.22, 7.1.0 - 7.1.8
bool(true) bool(true) bool(false) bool(false)
Output for 4.3.6 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
bool(true) bool(true) bool(true) bool(true)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/2TQiQ on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/2TQiQ on line 4 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/2TQiQ on line 4 bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/2TQiQ on line 5 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/2TQiQ on line 5 bool(false) Notice: Use of undefined constant INF - assumed 'INF' in /in/2TQiQ on line 6 Notice: Use of undefined constant INF - assumed 'INF' in /in/2TQiQ on line 6 bool(false) Notice: Use of undefined constant INF - assumed 'INF' in /in/2TQiQ on line 7 Notice: Use of undefined constant INF - assumed 'INF' in /in/2TQiQ on line 7 bool(false)

preferences:
323.85 ms | 402 KiB | 457 Q