add_post_meta — not working

Question

I am trying to insert data into wp_post and wp_postmeta tables but it seems like i am doing something wrong.

Here is my code:

$post_data = array(
                                    'post_title' => $data[0],
                                    'post_content' => $data[1],
                                    'post_status' => 'publish',
                                    'post_type' => 'product'
                                );

                                $id = wp_insert_post($post_data);
                                add_post_meta($id, '_stock', $data[6]);
                                add_post_meta($id, '_price', $data[7]);

The post is inserted as it should but when i check the postmeta table no values had been inserted. I also tried the update_post_meta but still doesn't work.

Any suggestions?

Answer 1

What user34296 said is update_post_meta() will update the value of the existing meta key (custom field) for the specified post. If it does not already exist it will call add_post_meta($post_id, $meta_key, $meta_value) instead. That's why you should use it.

EDIT: in this case it should work, error is coming from another part of the code.

Source

Answer 2

you should try like this:

update_post_meta( $id, '_price', true );