3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(sprintf('%.99f', floatval(0.1)));
Output for 5.3.4 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Notice: sprintf(): Requested precision of 99 digits was truncated to PHP maximum of 53 digits in /in/W3eJs on line 3 string(55) "0.10000000000000000555111512312578270211815834045410156"
Output for 7.3.32 - 7.3.33
string(55) "0.10000000000000000555111512312578270211815834045410156"
Output for 5.2.9 - 5.2.17, 5.3.0 - 5.3.3
Notice: sprintf(): Requested precision of 99 digits was truncated to PHP maximum of 40 digits in /in/W3eJs on line 3 string(42) "0.1000000000000000055511151231257827021182"
Output for 5.2.1 - 5.2.8
string(42) "0.1000000000000000055511151231257827021182"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0
string(42) "0.1000000000000000000000000000000000000000"

preferences:
240.5 ms | 402 KiB | 312 Q