Combine Two Queries into One? - php

Question

I have a MySQL query that selects all audioids from a certain user in a subscribe table.
I then have another query which takes this list of audioids and matches them against a field called opids in a table called audioposts. It then selects the titles from that audioposts table and joins the users from a users table at the userid.
Is there a way I can turn these two queries into one query?
query1 = "SELECT audioid FROM subscribe WHERE userid = $userid";
query2 = "SELECT ap.audioid, ap.title, us.name FROM audioposts ap
INNER JOIN audioposts a2 ON a2.audioid = ap.opid
INNER JOIN users us ON us.id = a2.userid
WHERE ap.opid = $newaudio";
Here is the current two query code which I'd like to replace with one query. I've not yet translated this into prepared statements as it's easier for me to visualize it the old-fashioned way. Plus I'll be converting this into NodejS eventually anyway;
$selectaudioid = "SELECT audioid FROM subscribe WHERE userid = $userid";
$audioResult=$dblink->query($selectaudioid);
if ($audioResult->num_rows>0) {
while ($row = $audioResult->fetch_assoc()) {
$newaudio = $row[audioid];
$getallaudio = "
SELECT ap.audioid, ap.title, us.name FROM audioposts ap
INNER JOIN audioposts a2 ON a2.audioid = ap.opid
INNER JOIN users us ON us.id = a2.userid
WHERE ap.opid = $newaudio AND ap.opid <> '0'";
$getallresult = $dblink->query($getallaudio);
if ($getallresult->num_rows>0) {
while ($row = $getallresult->fetch_assoc()) {
$dbdata[]=$row;
}}}}

Answer 1

Just add another join with subscribe.
SELECT ap.audioid, ap.title, us.name
FROM audioposts ap
INNER JOIN audioposts a2 ON a2.audioid = ap.opid
INNER JOIN subscribe s ON s.audioid = ap.opid
INNER JOIN users us ON us.id = a2.userid
WHERE s.userid = $userid AND ap.opid <> '0'