3v4l.org

run code in 200+ php & hhvm versions
<?php printf("%u\n",0xffffffffffffffff ); // 0 printf("%d",0xffffffffffffffff ); // 0
Output for 4.3.0 - 5.0.1, 5.0.3 - 5.0.5, 5.1.1 - 7.2.6
0 0
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/9hvo2 on line 3
Process exited with code 255.
Output for 5.0.2
4294967295 9223372036854775807