If statement within an array declaration …is that possible? [duplicate]

Answer 1

In this case only possible option is to use following syntax:

'smallimage' => (isset($product_option_value_description_query->row['smallimage']) 
  ? isset($product_option_value_description_query->row['smallimage'])
    : NULL)

Though this has side effect, if your condition fails you will have "smallimage" key with value of NULL