3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function &foo() { static $bar = null; if ($bar === null) { $bar[] = 'init'; } return $bar; } $array = &foo(); $arary[] = 'fot'; // var_dump(foo());
based on W2qjd
Output for 4.3.0 - 7.2.0
array(1) { [0]=> string(4) "init" }