Drupal 7 WHERE using OR and AND - php

Question

Writing a custom module trying to look up comments. I have a SQL statement as follows:
$client_comment = db_query("SELECT comment.subject AS comment_subject,
comment.cid AS cid,
comment.nid AS comment_nid,
comment.created AS comment_created
FROM
{comment} comment
INNER JOIN {node} node_comment ON comment.nid = node_comment.nid
INNER JOIN {field_data_field_associated_client} associated_client ON comment.cid = associated_client.entity_id
WHERE (( (associated_client.field_associated_client_nid = '$nid')
OR (comment.nid = '$nid') )
AND (comment.status <> '0')
AND (node_comment.status = '1') )
ORDER BY comment_created DESC
LIMIT 10 OFFSET 0");
Ideally, this is supposed to return the following:
However, I get the following:
For some reason, it is only returning the "associated_client" result instead of the "comment.nid" result. Here is the full statement I'd like to get working. I know it's a SMH moment, but any help would be great.
Per request, here is the code I'm using to cycle through the returning array:
foreach($client_comment as $item) {
print_r($item);
print '<br /><br />';
}
Here are 2 queries that print all of the data to the screen separately. I want to combine these two queries in to 1 query:
$client_comment = db_query("SELECT comment.subject AS comment_subject, comment.cid AS cid, comment.nid AS comment_nid, comment.created AS comment_created
FROM
{comment} comment
INNER JOIN {node} node_comment ON comment.nid = node_comment.nid
WHERE (( (comment.status <> '0') AND (node_comment.status = '1') AND (comment.nid = '$nid') ))
ORDER BY comment_created DESC
LIMIT 10 OFFSET 0");
// Get the comments associated TO the client from Caregiver node.
$client_associated_comment = db_query("SELECT comment.subject AS comment_subject, comment.cid AS cid, comment.nid AS comment_nid, comment.created AS comment_created
FROM
{comment} comment
INNER JOIN {node} node_comment ON comment.nid = node_comment.nid
INNER JOIN {field_data_field_associated_client} associated_client ON comment.cid = associated_client.entity_id
WHERE (( (comment.status <> '0') AND (node_comment.status = '1') AND (associated_client.field_associated_client_nid = '$nid') ))
ORDER BY comment_created DESC
LIMIT 10 OFFSET 0");
foreach($client_comment as $item) {
$client_comment_array[] = $item;
}
foreach ($client_associated_comment as $item) {
$client_comment_array[] = $item;
}
foreach($client_comment_array as $item) {
print_r($item);
print '<br /><br />';
}

Answer 1

Alright, I solved it by using LEFT JOIN instead of INNER JOIN. Resulting query:
$client_comment = db_query("SELECT comment.subject AS comment_subject,
comment.cid AS cid,
comment.nid AS comment_nid,
comment.created AS comment_created
FROM
{comment} comment
INNER JOIN {node} node_comment ON comment.nid = node_comment.nid
LEFT JOIN {field_data_field_associated_client} associated_client ON comment.cid = associated_client.entity_id
WHERE (( (associated_client.field_associated_client_nid = '$nid')
OR (comment.nid = '$nid') )
AND (comment.status <> '0')
AND (node_comment.status = '1') )
ORDER BY comment_created DESC
LIMIT 10 OFFSET 0");
foreach($client_comment as $item) {
print_r($item);
print '<br /><br />';
}