3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function collector() { static $collection = array(); return $collection; } $collection = &collector(); $collection[] = 'foo'; print_r(collector());
Output for 4.4.0 - 4.4.9, 7.0.0 - 7.1.0
Notice: Only variables should be assigned by reference in /in/6Yrdq on line 7 Array ( )
Output for 5.0.5 - 5.6.28
Strict Standards: Only variables should be assigned by reference in /in/6Yrdq on line 7 Array ( )
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
Array ( )