3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function modifyObj($obj, &$objb) { $obj->a = 'Hello world'; $obj->b = 'Something new'; $obj = new StdClass(); $objb = new StdClass(); } $obj = new StdClass(); $obj->a = 'Hello'; $objb = new StdClass(); $objb->a = 'Hi'; modifyObj($obj, $objb); var_dump($obj, $objb);
Output for 5.0.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
object(stdClass)#1 (2) { ["a"]=> string(11) "Hello world" ["b"]=> string(13) "Something new" } object(stdClass)#4 (0) { }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 4.4.9
object(stdClass)(1) { ["a"]=> string(5) "Hello" } object(stdClass)(0) { }