返回的数据顺序不正确

Question

I have an MySQL data:

I try to get fetch them using jquery:

         $.post(
            '../php/teacheradminfunction.php',
            {'functions':'getBadgeImg','topicSkill':$('#selTeachAdminBadgeDeleteSkill').val()},
            function(data) {
                $.each(data, function( key, value ) {
                    alert( key + ": " + value.badge_path );
                });
            },'JSON'
        );

My PHP script:

$queryStmt = 'SELECT badge_path FROM badges WHERE badge_skill=:sqlSkill ORDER BY `index` ASC';
        $queryPrepare = $dba_connect->prepare($queryStmt);
        $queryPrepare->execute(array(':sqlSkill'=>$_POST['topicSkill']));
        $queryResult = $queryPrepare->fetchAll(PDO::FETCH_ASSOC);
        $queryPrepare->closeCursor();

        echo json_encode($queryResult);

My problem is that I needed to have the correct order, what I get is:

[{"badge_path":"..\\image\\badges\\Counting10_g.png"},{"badge_path":"..\\image\\badges\\Counting10_b.png"},{"badge_path":"..\\image\\badges\\Counting10_s.png"}]

Expected result :

[{"badge_path":"..\\image\\badges\\Counting10_g.png"},{"badge_path":"..\\image\\badges\\Counting10_s.png"},{"badge_path":"..\\image\\badges\\Counting10_b.png"}]

Answer 1

You could also select the Index or "badge_rank" and use this as key:value as JSON instead of an array of objects.

Your easiest way is to change the Index of your badge_path to the correct order.

1. Gold,
2. Silver,
3. Bronce

Answer 2

change the index value in database modify the index value for Counting10_s.png and make it 2 and likewise change the index value for Counting10_b.png and make it 3

Since you are using order by index hence the rows are sorted based on the index value. Modifying the index value will give you the desired output

Answer 3

Give proper index in your database. According to your query it's return correct records.

index    badge_rank
  1       GOLD
  2       SILVER
  3       BRONZE