3v4l.org

run code in 300+ PHP versions simultaneously
<?php $f = M_PI; echo "$f\n"; ini_set('precision', 2); echo "$f\n";
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
3.1415926535898 3.1
preferences:
62.09 ms | 406 KiB | 5 Q