3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php printf("%u",0xffffffffffffffff); printf("%f",0xffffffffffffffff); printf("%d",0xffffffffffffffff);
Output for 5.2.1 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
018446744073709551616.0000000
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 5.0.1, 5.0.3 - 5.2.0
018446744073709552000.0000000
Output for 5.0.2
429496729518446744073709552000.0000009223372036854775807