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<?php $array = [1, 2, 3, 4]; $callable = function($value, $key, array &$output) { $output[$key] $value * 100; }; $output = []; array_map($callable, $array, array_keys($array), $output); print_r($output);
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Parse error: syntax error, unexpected '$value' (T_VARIABLE) in /in/hfc1I on line 5
Process exited with code 255.

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