magento - How do I find out if product has a product image? -

to image src in template file following code used:

$this->helper('catalog/image')->init($_product, 'small_image')->resize(200,100); 

but how can find out if there image associated product or if placeholder image used?

(magento v. 1.4.2)

placeholder used if product dosen't have image.

you can check methods:

$product->getsmallimage(); $product->getthumbnail(); $product->getimage(); 

if product has image moethod return path.

or can check method

$product->getmediagalleryimages(); 

update 14.10.2011

no_selection set when check in bo > product edit page > images 'no image' chackbox