When I remove a posting, I want it to remove the posting itself, any comments related to it, and like/dislike of the comments, and favorites that people added. So there are 4 queries that do this, but somehow only 2 of the 4 are working.

When I switch say query 2 for query 3, then query 2 works and query 3 doesn't... The table names are correct and it is getting the data via $_GET.

      // Grab the data from the GET
      $posting_id = $_GET['posting_id'];

      // Delete the posting from the database
      $query = "DELETE FROM posting WHERE posting_id=$posting_id LIMIT 1";
      mysqli_query($dbc, $query) or die(mysql_error());

      // Delete the comments 
      $query2 = "DELETE FROM comments WHERE posting_id=$posting_id ";
      mysqli_query($dbc, $query2) or die(mysql_error());

      // Delete the like/dislike 
      $query3 = "DELETE FROM comment_likedislike WHERE posting_id=$posting_id ";
      mysqli_query($dbc, $query3) or die(mysql_error());

      // Delete the favorites
      $query4 = "DELETE FROM favorite WHERE posting_id=$posting_id ";
      mysqli_query($dbc, $query4) or die(mysql_error());