PHP - Match html li elements with nested br tag

How do I return the contents of all li elements when there are other tags (br, p, etc) within it before the closing tag is reached. For example ... with this data:

<li>Testhere and here</li>
<li>Test here2 and<br> there 2</li>
<li>Test here and there3</li>

I have tried this regular expression:

!<li>(?P<category1>[^(</li>)]*)</li>!

but it only returns the first and third list element ... how do I get all three?

Thanks in advance

This should match all 3 of the example lines you gave:

Code:

<li>(?P<category1>.*)</li>