3v4l.org

run code in 150+ php & hhvm versions
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<?php var_dump(dechex(~256 + 1)); var_dump(dechex(256)); var_dump(dechex(-256)); var_dump(dechex(~(0xffffffffffffff00) + 1);
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.4.17
Parse error: syntax error, unexpected ';' in /in/Ejt4l on line 5
Process exited with code 255.