3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = &var_dump($a);
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: a in /in/VGvql on line 2 NULL Notice: Only variables should be assigned by reference in /in/VGvql on line 2
Output for 5.0.5 - 5.6.22
Notice: Undefined variable: a in /in/VGvql on line 2 NULL Strict Standards: Only variables should be assigned by reference in /in/VGvql on line 2
Output for 5.0.4
Notice: Undefined variable: a in /in/VGvql on line 2 NULL
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.3
Notice: Undefined variable: a in /in/VGvql on line 2 NULL
Output for 4.4.0 - 4.4.9
Notice: Undefined variable: a in /in/VGvql on line 2 NULL Notice: Only variables should be assigned by reference in /in/VGvql on line 2