preg_match_all regular expression, how to find pictures in a certain folder?

Find all the images below:/uploads/image/2016-01-02/123abc.png
How to write this kind of path using regular expressions?

preg_match_all(pattern,$str,$data)

Reply content:

Find all the images below:/uploads/image/2016-01-02/123abc.png
How to write this kind of path using regular expressions?

preg_match_all(pattern,$str,$data)

<code>如果单纯只是找出图片:  ls /uploads/image/2016-01-02/ | grep png$ 即可

正则（未测试）：
'/\/\w+\/\w+\/\d+\-\d+\-\d+\/\d{3}\w{3}\.png/'

\w 自己换成[a-z]也可把</code>