array merge

gistfile1.php

photos_query = new WP_Query( $photos );
$quotes_query = new WP_Query( $quotes );
$result = new WP_Query();

// start putting the contents in the new object
$result->posts = array_merge( $photos_query->posts, $quotes_query->posts );

// here you might wanna apply some sort of sorting on $result->posts

// we also need to set post count correctly so as to enable the looping
$result->post_count = count( $result->posts );