3v4l.org

run code in 300+ PHP versions simultaneously
<?php date_default_timezone_set('America/Los_Angeles'); echo date('Y-m-d H:i:s', 0) . PHP_EOL; date_default_timezone_set('UTC'); echo date('Y-m-d H:i:s', 0);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 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 - 8.2.19, 8.3.0 - 8.3.7
1969-12-31 16:00:00 1970-01-01 00:00:00
preferences:
170.54 ms | 404 KiB | 298 Q