3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '2019-12-15T17:51:38.948471000Z'; var_dump(strtotime($str));
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
int(1576432298)
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.9
bool(false)
preferences:
124.35 ms | 407 KiB | 5 Q