Setting a multiselect attribute using the attribute code

Question

I am trying to create products programmatically. In the task, I need to set the multiselect attribute options. I tried like below, but it is not working.

$optionIds[] = $optionId; //$optionIds = array(41,42,43)
$product->setData($attributeCode, $optionIds);

But it is not working. I don't know what I am doing wrong. Can anyone help on this?

Answer 1

Multiselect values are saved id db as imploded string, so if you created your attribute correctly, imploding array should solve the problem.

Answer 2

The values from multiselect attributes are saved concatenated by comma 1,4,6 so you need to replace your code from

$optionIds[] = $optionId; //$optionIds = array(41,42,43)
$product->setData($attributeCode, $optionIds);

To

$optionIds = implode(',',$optionId); //$optionIds = array(41,42,43)
$product->setData($attributeCode, $optionIds);