3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function anull() { return null; } $x = array(); $x += anull(); var_dump( $x );
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Unsupported operand types in /in/SmhWh:7 Stack trace: #0 {main} thrown in /in/SmhWh on line 7
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Invalid operand type was used: cannot perform this operation with arrays in /in/SmhWh on line 7
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.2 - 5.6.21
Fatal error: Unsupported operand types in /in/SmhWh on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Unsupported operand types in /in/SmhWh on line 7