3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('a' => "test", 'b' => 'aa'); $a['a'] += array('bb' => "gdaf"); var_dump($a); ?>
based on iKQZO
Output for 7.1.0
Warning: A non-numeric value encountered in /in/m7GvW on line 3 Fatal error: Uncaught Error: Unsupported operand types in /in/m7GvW:3 Stack trace: #0 {main} thrown in /in/m7GvW on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.14
Fatal error: Uncaught Error: Unsupported operand types in /in/m7GvW:3 Stack trace: #0 {main} thrown in /in/m7GvW on line 3
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Invalid operand type was used: cannot perform this operation with arrays in /in/m7GvW on line 3
Process exited with code 255.
Output for 4.3.2 - 5.6.21
Fatal error: Unsupported operand types in /in/m7GvW on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Unsupported operand types in /in/m7GvW on line 3