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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('a' => "test", 'b' => 'aa'); array_merge($a, array(['aa'] => "dfd")); var_dump($a); ?>
based on W406A
Output for hhvm-3.10.0 - 3.12.0
Warning: Invalid operand type was used: Invalid type used as key in /in/65tdj on line 3 array(2) { ["a"]=> string(4) "test" ["b"]=> string(2) "aa" }
Output for 5.4.0 - 5.6.28
Warning: Illegal offset type in /in/65tdj on line 3 array(2) { ["a"]=> string(4) "test" ["b"]=> string(2) "aa" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.28
Parse error: syntax error, unexpected '[', expecting ')' in /in/65tdj 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 '[', expecting ')' in /in/65tdj on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/65tdj on line 3
Process exited with code 255.