3v4l.org

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<?php $values = [     ['1', '2', '3'],     ['a', 'b', 'c'], ];     function setGreek(&$output) {     $output = ['α', 'β', 'ɣ', 'δ']; }   setGreek($values[]);   print_r($values);
Output for 5.4.0 - 5.4.34
Parse error: syntax error, unexpected '[', expecting ']' in /in/dI7rX on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/dI7rX on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/dI7rX on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/dI7rX on line 3
Process exited with code 255.
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