3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo date("01-01-y",strtotime("-1 year")) ."\n"; echo date("31-12-y",strtotime("-1 year"));
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
01-01-19 31-12-19

preferences:
108.54 ms | 1975 KiB | 4 Q