return insert id from database insert function

Pass true as the second argument.

PHP Code:

$id = $this->db->table('gallery_albums')->insert($data, true); 


Since there is overhead associated with getting the last inserted ID from many databases, you get a small performance boost by not returning it if you don't need it. So CI4 doesn't return that by default, but makes it easy to get it if you need it.

Support Development •  CodeIgniter 4 Foundations • Practical CodeIgniter 3  • CodeIgniter Tutorials