Two ForEach Loops In PHP With Array Of Objects

I am using php to query MySQL and am returning an array of objects.

I then iterate the array by using foreach ($sql as $res) {

In those query results in $sql I need to also iterate one of the fields called storeName

How can I create a second foreach loop to iterate over each storeName in $res

Answer

Use -> notation if $res is object:

foreach ($sql as $res) {
    foreach ($res->storeName as $store) {
        print_r($store);    // or whatever else
    }
}