How to get php value in another table for aydishnik?
There is a MySQL table with categories, each category with its id.
And there there's a table with additional descriptions, she has an item_id corresponding to aydishnik the first table.
Table #__category in her line of Concrete blocks with id=20
and the table #__category_description the line the Price of blocks with id=1, item_id=20 and value=1000
Here I need to get exactly a value of 1000 from the second table.