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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = ['red', 'green', 'blue']; $choices = []; foreach ($e as $a) { $choices[$a] = $a; } var_dump($choices); var_dump(array_combine($a, $a));
based on ffiOm
Output for 5.4.0 - 7.2.6
Notice: Undefined variable: e in /in/eJOW9 on line 5 Warning: Invalid argument supplied for foreach() in /in/eJOW9 on line 5 array(0) { } array(3) { ["red"]=> string(3) "red" ["green"]=> string(5) "green" ["blue"]=> string(4) "blue" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/eJOW9 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/eJOW9 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/eJOW9 on line 3
Process exited with code 255.