$re = '/(?P<main_title>^[A-Za-z]+)\s?\|\s?(?P<show_title>.*[^\s])\s?-\s?(?P<date>[a-zA-Z]+\s\d+)\s?-\s?(?P<show_artist>\w+\s?\W?\w+)/';
$str = 'FRISKY | Sound Navigation - February 2017 - Tommi Oskari [vk.com/feelin_frisky]';
preg_match_all($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