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<?php $mandatory = function () { throw new Exception('Mandatory Argument is Missing'); } function hello($argument = $mandatory) { echo $argument, PHP_EOL; } try { hello('Hello World'); hello(); } catch (Exception $e) { echo $e->getMessage(), PHP_EOL; }
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16, 7.0.0 - 7.0.1
Parse error: syntax error, unexpected 'function' (T_FUNCTION) in /in/qaSff on line 7
Process exited with code 255.

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