When adding a new product, the features and variations are automatically created.
Create new attributes in attributes page in Wordpress admin panel first.
Then find the file named functions.php in your Wordpress theme and add our code.
Add the attributes you created to the file as appropriate.
$attributes = array(
array("name"=>"Size","options"=>array("14 x 14","16 x 16","18 x 18"),"position"=>1,"visible"=>1,"variation"=>1),
array("name"=>"Materials","options"=>array("Cotton Twill","Spun Polyester"),"position"=>2,"visible"=>1,"variation"=>1)
);
After Add the variations you created to the file as appropriate and save functions.php file.
$variations = array(
array("regular_price"=>"10","price"=>"","sku"=>"","attributes"=>array(array("name"=>"Size","option"=>"14 x 14"),array("name"=>"Materials","option"=>"Cotton Twill")),"manage_stock"=>"","stock_quantity"=>"8"),
array("regular_price"=>"12","price"=>"","sku"=>"","attributes"=>array(array("name"=>"Size","option"=>"14 x 14"),array("name"=>"Materials","option"=>"Spun Polyester")),"manage_stock"=>"","stock_quantity"=>"8"),
array("regular_price"=>"14","price"=>"","sku"=>"","attributes"=>array(array("name"=>"Size","option"=>"18 x 18"),array("name"=>"Materials","option"=>"Cotton Twill")),"manage_stock"=>"","stock_quantity"=>"2"),
array("regular_price"=>"16","price"=>"","sku"=>"","attributes"=>array(array("name"=>"Size","option"=>"18 x 18"),array("name"=>"Materials","option"=>"Spun Polyester")),"manage_stock"=>"","stock_quantity"=>"2")
);
Now create a new product.
Attributes and variations are added when you publish the new product.