3v4l.org

run code in 500+ PHP versions simultaneously
<?php var_dump((string) ('11111111111111111111' + '2222222222222222222')); var_dump(bcadd((string) ('11111111111111111111' + '2222222222222222222'), '1')); var_dump(bcadd(bcadd('11111111111111111111', '2222222222222222222'), '1'));
Output for 7.3.32 - 7.3.33, 7.4.33, 8.0.13, 8.5.1 - 8.5.8
string(19) "1.3333333333333E+19" Fatal error: Uncaught Error: Call to undefined function bcadd() in /in/IBHsc:4 Stack trace: #0 {main} thrown in /in/IBHsc on line 4
Process exited with code 255.
Output for 8.0.2 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0
string(19) "1.3333333333333E+19" Fatal error: Uncaught ValueError: bcadd(): Argument #1 ($num1) is not well-formed in /in/IBHsc:4 Stack trace: #0 /in/IBHsc(4): bcadd('1.3333333333333...', '1') #1 {main} thrown in /in/IBHsc on line 4
Process exited with code 255.
Output for 7.4.0 - 7.4.32, 8.0.0 - 8.0.1
string(19) "1.3333333333333E+19" Warning: bcadd(): bcmath function argument is not well-formed in /in/IBHsc on line 4 string(1) "1" string(20) "13333333333333333334"
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
string(19) "1.3333333333333E+19" string(1) "1" string(20) "13333333333333333334"

preferences:
105.21 ms | 1701 KiB | 4 Q