3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = ['a' => 'aa', 'b' => 'bb']; $a = ['a' => 'aaa', 'c' => 'cc']; var_dump($a + $b);
based on MtNjS
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: b in /in/8DQV1 on line 6 Fatal error: Uncaught Error: Unsupported operand types in /in/8DQV1:6 Stack trace: #0 {main} thrown in /in/8DQV1 on line 6
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Notice: Undefined variable: b in /in/8DQV1 on line 6 Fatal error: Unsupported operand types in /in/8DQV1 on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/8DQV1 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/8DQV1 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/8DQV1 on line 3
Process exited with code 255.