CI4 - Last inserted record id?

Haven't tried it. But after you have save it.

PHP Code:

$this->model->insertID; 


It will not work, because $insertID declared as protected variable, but there is a public method getInsertID()

PHP Code:

$result = $this->model->save($data);
$id = $this->model->getInsertID(); 


and if there was an update, the function will return 0