Undefined offset: 1 (array filter)

Question

I have this arrangement that executes a foreach with the values ​​that a table sends, the problem arises that it is not filtering the empty values ​​and the array and it saves an empty value, that is, if I choose 1 and 4 in my table, it only stores the value of 1 and the second comes out empty.

this is my controller:

 $checked_array = $_POST['id_version'];

    foreach ($_POST['id_version'] as $key => $value) {
        if (in_array($_POST['id_version'][$key], $checked_array))
        {
         
                    $soft_instal = new Software_instalacion;
                    $soft_instal->id_instalacion             = $instalaciones->id;
                    $soft_instal->id_historial               = $historial->id;
                    $soft_instal->id_usuario                 = $request->id_usuario;
                    $soft_instal->id_version                 = $_POST['id_version'][$key];
                    $soft_instal->obs_software               = $_POST['obs_software'][$key];
                    $soft_instal->id_tipo_venta              = $_POST['id_tipo_venta'][$key];
                    $soft_instal->save();

        }
            
    }

this is my view: enter image description here

I would like to know how I can filter those empty values ​​of obs_software and id_tip_venta, that is, how can I apply the filter array