$re = '/(?<=\s)[^\s]+$/m';
$str = '[XIUREN秀人网] 2020.05.20 NO.2270 杨晨晨sugar
[UGIRLS尤果网] 2016.10.28 U221 杨晨晨
[YOUMI尤蜜荟] 媚眼传情 陈宇曦
[XIUREN秀人网] 2021.05.25 NO.3456 葛征 净高184cm';
preg_match_all($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