Have 2 queries and wondering if they can be combined - php

Question

So i have 2 queries, I am trying to run one inside of a loop (unsuccessfully), but I'm thinking there might be a possibility that I can combine the 2 of them.
Table profile_posts
ID
post_title
post_body
user_id
post_date
Table profile_posts_likes
ID
likes
user_like_id
post_id
$baseURL = 'Data.php'; //Grab page for pagination
$id = $_GET['id']; //Grab id from link
$limit = 10; //Limit returns to 10
//Select statement that grabs results from profile_posts table
$postQuery = "SELECT * FROM profile_posts WHERE user_id = :id ORDER BY post_date DESC LIMIT $limit"; //First Query
// Count of all records
$rowCount = countRecords($conn, $id);
// Initialize pagination class
$paginationConfig = array(
'postID' => $id,
'baseURL' => $baseURL,
'totalRows' => $rowCount,
'perPage' => $limit,
'contentDiv' => 'postContent',
'link_func' => 'searchFilterProfile'
);
$pagination = new Pagination($paginationConfig);
$profilePost = $conn->prepare($postQuery);
$profilePost->bindParam(":id", $id);
$profilePost->execute();
if($profilePost->rowCount() > 0){
foreach($postDisplay as $row){
$likeQuery = "SELECT id, COUNT(likes) as likeCount, user_Like_id, post_id FROM profile_posts_likes WHERE post_id = :postID"; //Second Query
$likeQuery = $conn->prepare($likeQuery);
$likeQuery->bindParam(":postID", $row['id']); //Grab id from first query
$likeQuery->execute();
$postlikeQuery = $likeQuery->fetchAll();
if($likeQuery->rowCount() > 0){
//Display like buttons, when user clicks "Like" button, send data through Ajax
//and update page with "Liked"
}
}
}
What this does is displays the posts on the users profile page, and then when a user views their page, they can 'Like' the post or 'unlike it'...Using Ajax to update page
Now is there a way that I can combine those 2 queries together instead of running one inside of the loop. I tried tossing a WHERE EXISTS in there to combine the Select statements, but no luck.
Appreciate any help. Thanks in advance.

Answer 1

You may express your query using a join:
SELECT ppl.id, ppl.user_Like_id, ppl.post_id
FROM profile_posts_likes ppl
INNER JOIN
(
SELECT *
FROM profile_posts
WHERE user_id = :id
ORDER BY post_date DESC
LIMIT $limit
) pp
ON pp.id = ppl.post_id;
Selecting COUNT in the second query makes no sense, as you are not using GROUP BY.