3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump((1<<61)+1); echo number_format((1<<61)+1);
Output for 4.3.0 - 4.3.1, 5.2.1 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.27, 8.0.0 - 8.0.15, 8.1.0 - 8.1.2
int(2305843009213693953) 2,305,843,009,213,693,952
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0
int(2305843009213693953) 2,305,843,009,213,694,000

preferences:
45.56 ms | 461 KiB | 5 Q