3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(unserialize('O:8:"stdClass":-1:{}'));
Output for 7.0.0 - 7.1.0
Fatal error: Possible integer overflow in memory allocation (4294967295 * 32 + 32) in /in/UFMM1 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.6.28
object(stdClass)#1 (0) { }
Output for 4.3.0 - 4.4.9
object(stdClass)(0) { }