3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=bcadd('1234567890123456789012345678901234567890','1000000000000000000000000000000000000000'); echo $a;
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
2234567890123456789012345678901234567890
preferences:
48.1 ms | 406 KiB | 5 Q