3v4l.org

run code in 500+ PHP versions simultaneously
<?php $time = microtime(true); var_dump ($time + 0.000001 - $time);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0
float(9.5367431640625E-7)
preferences:
28.76 ms | 1136 KiB | 7 Q