If you just want to add the text "product description", you can simply modify the text in brackets, for example:
$header["meta"]["description"] = translate("Price search results and product description for")." ".htmlentities($q,ENT_QUOTES,$config_charset);
However, if you want to output the actual product description, the variable you need is $product["products"][0]["description"], so to make the meta description tag be just that, you would use:
Hi Remco,
If you just want to add the text "product description", you can simply modify the text in brackets, for example:
$header["meta"]["description"] = translate("Price search results and product description for")." ".htmlentities($q,ENT_QUOTES,$config_charset);
However, if you want to output the actual product description, the variable you need is $product["products"][0]["description"], so to make the meta description tag be just that, you would use:
$header["meta"]["description"] = htmlentities($product["products"][0]["description"],ENT_QUOTES,$config_charset);
Cheers,
David.