$re = '/(?:\bT\s(\w+<T>)\(.*\);|(\w+[<?\w+>?]*\s)(\w+)\b((\s{[get;\|private get;|set;]+)|\(.*\));)/m';
$str = 'void Something();
int SomethingElse(Parameter parameter);
List<Something> SomethingVeryElse(One one, Two two);
T Get<T>(params object[] args);
IEnumerable<Plugin> Plugins { get; }';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php