HTML header based extraction

[Chimro]

I consider myself pretty proficient in PHP I have written a number of high quality database driven websites in PHP but I am having trouble with what I am trying to do now.

I have a variable filled with HTML data that will look something like this

Blah blah blah

<h1>Whubba</h1>
<h2>ROFL</h2>
This is a test
<h2>OMG</h2>
Yep, it's a test
<h1>LOLZ</h1>
No! It's not!

but there is no particular order, LOLZ could be before Whubba and OMG could be before ROFL. In some cases LOLZ, OMG, or ROFL may not even be there.

Only a few things are certain, the level 1 header Whubba will always be there. If ROFL and OMG are present they will always be after Whubba but before any other level 1 headings that follow Whubba and they will always be level 2 headings.

So I need to extract the content of ROFL and OMG up until the next heading (it could be another h2 or a h1) and save that information in a variable, one for ROFL and one for OMG.

How would I do this?

[bogu]

So if the code is like this:

Blah blah blah

<h1>Whubba</h1>
<h2>ROFL</h2>
This is a test
<h1>LOLZ</h1>
No! It's not!
<h2>OMG</h2>
Yep, it's a test

u extract for:

$ROLF = "This is a test
No! It's not!";
/* OR */
$ROLF = "This is a test";

and for:

$OMG = "Yep, it's a test";

And there are only head lines tag's (<h1> and <h2>)?