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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
3.1415926535898 3.1
preferences:
58.35 ms | 974 KiB | 4 Q