3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo(microtime(true)); ?>
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.19, 7.0.21 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.18, 7.2.20 - 7.2.26, 7.3.0 - 7.3.4, 7.3.7 - 7.3.8, 7.3.10 - 7.3.13, 7.4.0 - 7.4.1
1499327102.0001
Output for 7.0.20, 7.2.19, 7.3.5 - 7.3.6, 7.3.9
1499327102.0002
preferences:
122.06 ms | 402 KiB | 157 Q