3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $val = 0x1 << 64; echo $val."\n"; (float)$val = (float)0x1 << 64; echo $val;
based on G0AnA
Output for 7.0.0 - 7.1.0
0 0
Output for 4.3.0 - 5.6.28
1 1