在HTML中剥离目录结构

Question

I have a PHP application that reads in a bit of HTML. In this HTML there may be an img tag. What I want to do is strip the directory structure from the src of the image tag e.g.

<img src="dir1/dir2/dir3/image1.jpg>
to 
<img src="image1.jpg">

Anyone have any pointers?

Thanks, Mark

Answer 1

As a suggestion, rather than using regex, you may be better off using something like the SimpleXML class to traverse the HTML, that way you'd be able to find the img tags and their src attribute then change it easily. Rather than having to try and parse a whole document with regex. After you've done that you'd be able to just explode the string using the "/" delimiter and use the last value of the exploded array as the src attribute.

PHP.net's SimpleXML Manual: http://php.net/manual/en/book.simplexml.php