3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo "Unsigned and Signed:\n"; printf("%u\n",(2147483647 * 2) + 1); printf("%d\n",2147483647);
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Unsigned and Signed: 4294967295 2147483647
Output for hhvm-3.10.0

Process exited with code 153.