3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class z{ function __construct() { echo "Hi!\n"; } function __destruct() { echo "Bye!\n"; } } function a() { $z = new z; $z = null; echo "?\n"; } function b() { a(); a(); } b(); echo "Over and out.\n";
Output for 5.0.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Hi! Bye! ? Hi! Bye! ? Over and out.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 4.4.9
? ? Over and out.