I'm using $wpdb->insert to insert data to my plugin table. How can I get the id of the new line I Just insert. Because I have a lot of users that add data to the table I can't use $wpdb->insert_id Because it's not necessary the last one.
There is no other way, but I can not see how you need any other way then this. I believe that the insert ID accessed by $wpdb is the last ID by this instance of WPDB, other inserts should not affect that but I'm not sure.
<?php $wpdb->insert("QUERY"); $this_insert = $wpdb->insert_id; ?>