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run code in 150+ php & hhvm versions
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<?php $config = [ 'foo' => 'bar', 'baz' => 'qux', ]; var_dump(print_r($config, true));
Output for 5.4.0 - 7.1.0
string(44) "Array ( [foo] => bar [baz] => qux ) "
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/rQo9p 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/rQo9p on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/rQo9p on line 3
Process exited with code 255.