Retireving text (not value) from within an <option>

Hi,
I’m developing a form that generates an ‘Asthma Action Plan’ from a heap of select menus. A typical option looks like this:

<option value="alvesco_160">Alvesco 160mcg Inhaler (red)</option>

I take the value to generate an image,

$img_notwellReliever = "<img class=\"image\" src=\"images/".$_POST['notwellReliever'].".jpg\" alt=\"When not well reliever\" />";

and add the description next to it. Getting the description part was easily done using JavaScript’s innerHTML, but the plan is being beefed up and I’ve switched over to PHP… what is the PHP equivalent of innerHTML?

(The options are being generated from a flat file db, if that affects the answer.)