Question

this is taking me too long to figure out. I am using Codeigniter to query a database.
The model does this

 function currentfunction($id)
{ 
    $query = $this->db->get_where('mytable', array("id =" => $id));

    if($query->num_rows() > 0){
        return $query->result_array();
    }else {
        return false;
    }
}

The controller

$this->load->model('Display');
$results = $this->Display->currentfunction($id);
$this->load->view('current_items', array('currentitems' => $results));

The view

foreach($currentitems as $row){
              echo $row['name']
              ///....do more
              }

works just fine EXCEPT IF no rows are returned

then

Message: Invalid argument supplied for foreach()...

How do I handle the if…else…scenario

I tried this Q-A, but doesn’t work for me. PlsHlp.

Answer 1

Just do:

if(is_array($currentitems)) {
    foreach($currentitems as $row){
              echo $row['name']
              ///....do more
    }
}
else
{
    echo "No items in database!";
}

You are getting an error because foreach expects its first argument to be an array. If there are no items in the database however your functions returns false.