如何从PHP中的字符串中获取html标签？

Question

I have a html output I'm pulling from a RSS feed, it is somethig like this:

<div>
    <p>
        Some text
    </p>
    <iframe src="http://www.source.com"></iframe>
</div>

The problem is that I only need the attr "src" of the iframe tag, Is there a way to get it with PHP? Regex maybe?

Thanks in advance!

Answer 1

I'd recommend DOMDocument or SimpleXML.

Something like this might give you the idea.

var_dump(simplexml_load_string($rss_feed));