php calculation - help!

[Andy Warner]

Ive got the following:

<actinic:block php="true" >
$ih = "<actinic:variable name="productimageheight">"; ////thats 240
$iw = "<actinic:variable name="ProductImageWidth" />"; /////thats 480
$ih = trim($ih); //remove trailing spaces
$iw = trim($iw);
$num = $ih/$iw;
echo $num;
</actinic:block>

and i get div 0 error....
if i echo $ih or $iw, i get their values correctly - i'm guessing they are still text so i tried (float)$ih and i tried (int)$ih but every time I get an error...

what stupid error am i making??

help pleeeease chaps/chapesses!

[NormanRouxel]

You've forgot the closing / in the first variable. And there's no need to treat these as strings. Also add selectable="false" to your variables so they work on the Design tab.

Try

<actinic:block php="true" >
$ih = <actinic:variable name="ProductImageHeight" selectable="false" />; ///// thats 240
$iw = <actinic:variable name="ProductImageWidth" selectable="false" />; ///// thats 480
$num = $ih/$iw;
echo $num;
</actinic:block>

[Andy Warner]

just that pesky trailing / and =false...

thankyou Norman, I really do appreciate it - works as it should now!