正则有关问题来一发

<br /><?php<br /><br />$str1 = 'http://www.uploadfr.com/images/2014/03/20/204417dydmmeowem3mlnl0.jpg.thumb0608f2.jpg';<br />$str2 = 'http://www.uploadfr.com/images/2014/03/20/204417dydmmeowem3mlnl0.jpg';<br /><br />$pattern = '/^http:\/\/www\.uploadfr\.com\/images\/(\d{4})\/(\d{2})\/(\d{2})\/([a-z0-9]+)\.(jpg<br><font color='#FF8000'>------解决方案--------------------</font><br>png<br><font color='#FF8000'>------解决方案--------------------</font><br>gif<br><font color='#FF8000'>------解决方案--------------------</font><br>jpeg)(\.thumb([a-z0-9]{6})\.\\5)?$/';<br /><br />preg_match($pattern, $str1, $match1);<br />preg_match($pattern, $str2, $match2);<br /><br />print_r($match1);<br />print_r($match2);<br />

<br />$content=<<<TXT<br />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<br />TXT;<br /><br />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, $matches);<br /><br />print_r($matches[0]);<br />