3v4l.org

run code in 300+ PHP versions simultaneously
<?php $f = 1.2345678901234567890; echo $f; ini_set('precision', 50); echo "\n", $f;
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.30, 8.0.0 - 8.0.22, 8.1.0 - 8.1.9
1.2345678901235 1.2345678901234566904321354741114191710948944091797

preferences:
62.71 ms | 409 KiB | 5 Q