I have two WP_Query like these:
$query1 = new WP_Query([ 'post_type' => 'product', 's' => $searchStr ]);
and searching by metabox:
$query2 = new WP_Query([ 'post_type' => 'product', 'meta_query' => [ [ 'key' => 'my_meta_key', 'value' => $searchStr, 'compare' => 'LIKE' ] ] ]);
How can I create a query to relate these two query by "OR", like:
`$query1 OR $query2" ?