Please House how else can I iterate the 'response' because this is not working. But the connection to the dB is okay

Question

/* AJAX SECTION COMPLETE */
$(document).ready(function()
{
load_comment();
function load_comment()
{
$.ajax({
type: "POST",
url: "code.php",
data:
{
'comment_load_data': true
},
success: function(response)
{
$('.comment_container').html("");
// console.log(response);

$.each(response, function(key, value)
{
$('.comment_container').append('<div style="margin-left: 1px; width: 95%;" class="reply_box commentHeading ">\
<h6 class="username"> '+ value.user["fullname"] +' : '+ value.cmt["commented_on"] +' </h6>\
<p class="para"> '+ value.cmt["msg"] +' </p>\
<button class="reply_btn btn_warning"> Reply </button>\
<button class="view_reply_btn btn_danger"> View Replies </button>\
<div class="reply_section">\
</div>\
</div>\
');
});
}
});
}
});

Answer 1

/*PHP SECTION */

// FETCHING COMMENTS FROM THE DB
if(isset($_POST['comment_load_data']))
{
$comments_query = " SELECT * FROM comments ";
$comments_query_run = mysqli_query($con, $comments_query);

$array_result = [];

if (mysqli_num_rows($comments_query_run) > 0) {

foreach($comments_query_run as $row)
{
$user_id = $row['user_id'];
$user_query = " SELECT * FROM users WHERE id = $user_id LIMIT 1 ";
$user_query_run = mysqli_query($con, $user_query );
$user_result = mysqli_fetch_array($user_query_run);

array_push($array_result, ['user' => $user_result, 'cmt'=>$row]);
}
header('Content-type: application/json');
echo json_encode($array_result);
}
else {
echo "Give a Comment";
}
}

Answer 2

This is the Error I'm getting:

Uncaught TypeError: Cannot use 'in' operator to search for 'length' in arrays.