Есть массив:
Array
(
[0] => Array ( [shop_intermediate_id] => 5 [shop_items_catalog_item_id] => 183 [sho_shop_items_catalog_item_id] => 164 [users_id] => 20 [shop_intermediate_count] => 0 )
[1] => Array ( [shop_intermediate_id] => 6 [shop_items_catalog_item_id] => 183 [sho_shop_items_catalog_item_id] => 165 [users_id] => 20 [shop_intermediate_count] => 0 )
[2] => Array ( [shop_intermediate_id] => 7 [shop_items_catalog_item_id] => 183 [sho_shop_items_catalog_item_id] => 166 [users_id] => 20 [shop_intermediate_count] => 0 )
[3] => Array ( [shop_intermediate_id] => 8 [shop_items_catalog_item_id] => 183 [sho_shop_items_catalog_item_id] => 167 [users_id] => 20 [shop_intermediate_count] => 0 )
[4] => Array ( [shop_intermediate_id] => 9 [shop_items_catalog_item_id] => 183 [sho_shop_items_catalog_item_id] => 168 [users_id] => 20 [shop_intermediate_count] => 0 )
)
нужно извлечь в строку вида $str = x, y, z,... значения элементов из вложенных массивов с ключом sho_shop_items_catalog_item_id
Пожалуйста, помогите с конструкцией.
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