3v4l.org

run code in 500+ PHP versions simultaneously
<?php $date = new DateTimeImmutable("2022-09-28 06:30:05.011183"); $timestampMs = (int) ($date->getTimestamp() . $date->format('v')); $timestampS1000 = (int) ($date->getTimestamp() * 1000); var_dump($timestampMs); var_dump($timestampS1000); var_dump($timestampMs === $timestampS1000);
Output for 7.4.0 - 7.4.33, 8.0.1 - 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
int(1664339405011) int(1664339405000) bool(false)
preferences:
100.16 ms | 1241 KiB | 4 Q