正则问题来一发

<?php$str1 = 'http://www.uploadfr.com/images/2014/03/20/204417dydmmeowem3mlnl0.jpg.thumb0608f2.jpg';$str2 = 'http://www.uploadfr.com/images/2014/03/20/204417dydmmeowem3mlnl0.jpg';$pattern = '/^http:\/\/www\.uploadfr\.com\/images\/(\d{4})\/(\d{2})\/(\d{2})\/([a-z0-9]+)\.(jpg|png|gif|jpeg)(\.thumb([a-z0-9]{6})\.\\5)?$/';preg_match($pattern, $str1, $match1);preg_match($pattern, $str2, $match2);print_r($match1);print_r($match2);

$content=<<<TXT字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字字http://www.uploadfr.com/images/2014/03/20/204417dydmmeowem3mlnl0.jpg.thumb0608f2.jpg字字字字字字字字字字字字字字字字http://www.uploadfr.com/images/2014/03/20/204417dydmmeowem3mlnl0.jpg字字字字字字字字字字字字字字字字TXT;preg_match_all('/http:\/\/www.uploadfr.com\/images\/\d{4}\/\d{2}\/\d{2}\/\d{6}.*?jpg(\.thumb[a-z0-9]{6}\.jpg)?/si', $content, $matches);print_r($matches[0]);