Question

This page will delete a post:

require_once ('db.php');
$db = new DB();
$db->deletePost($_GET['id'], $_GET['postType']);

db.php only contains a class which called DB and its functions.

this is a part of db.php:

public function deleteComment($post_id, $post_type)
{
    $query = "delete from t_comments where c_type = '$post_type' and c_id = '$post_id';";
    $this->execute($query);
}
public function deletePost($post_id, $post_type)
{
    deleteComment($post_id, $post_type);
    $query = "delete from t_news where n_id = '$post_id';";
    $this->execute($query);
}

Then mysql says:
Fatal error: Call to undefined function deletecomment() in db.php on line 70

I defined deleteComment above the deletePost!So what’s the problem?Can’t I call another function of a class in that class?But in C++, I think it is possible!

Answer 1

Use this:

$this->deleteComment($post_id, $post_type);

instead of

deleteComment($post_id, $post_type);