3v4l.org

run code in 300+ PHP versions simultaneously
<?php $seconds = 21; // 例如,3661秒 $time = gmdate("H:i:s", $seconds); echo $time; // 输出格式如:01:01:01
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
00:00:21

preferences:
64.66 ms | 402 KiB | 61 Q