$re = '/^
(?P<show>[a-zA-Z1-9\.\-]+[^\.])
\.[Ss]?(?P<season>\d{1,2})[EeXx](?P<episode>\d{1,2})
(\.(?P<title>[a-zA-Z1-9\.]+[^\.]))?
\.(?P<resolution>\d{3,4}p)
\.(?P<quality>[a-zA-Z\-]{1,6})
\.(?P<codec>[a-zA-Z0-9\.]+\d)
([\.\-](?P<team>.+))?
$/mx';
$str = 'Person.of.Interest.S05E13.720p.HDTV.X264-DIMENSION
The.Big.Bang.Theory.S09E21.720p.HDTV.X264-DIMENSION[ettv]
Homeland.S05E11.Our.Man.in.Damascus.720p.WEB-DL.DD5.1.H264-NTb[rarbg]
limitless.s01e01.pilot.720p.webrip.hevc.x265.rmteam
vikings.s04e01.a.good.treason.720p.web.dl.hevc.x265.rmteam
Brooklyn.Nine-Nine.S03E23.720p.WEBRip.x264
';
preg_match_all($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