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<?php $function = new ReflectionFunction(function( array &$a0 = null ){}); $parameters = $function->getParameters(); var_dump(array_map('strval', $parameters));
based on k6Wnu
Output for 5.3.0 - 7.1.0
array(1) { [0]=> string(53) "Parameter #0 [ <optional> array or NULL &$a0 = NULL ]" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/aXBX7 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 T_FUNCTION, expecting ')' in /in/aXBX7 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/aXBX7 on line 3
Process exited with code 255.