timestampdiff codeigniter w/visit counter - php

Question

I'm trying to make a visit counter in codeigniter with filters by cheking the ip.
This is my code so far:
public function new_visit($ip)
{
$new_ip = $ip;
$this->db->from('visitas');
$this->db->where('ip_addr', $new_ip);
$query = $this->db->get();
$count = $query->num_rows();
if ($count > 0) {
$lastv = $query->row('last_visit');
$currentv = new DateTime('NOW');
$consulta = $this->db->query('SELECT TIMESTAMPDIFF(HOUR,"$currentv","$lastv" ) FROM visitas WHERE ip_addr = "$new_ip"',FALSE);
**if ($consulta->result() > 10) {**
$this->db->set('cant_visit', 'cant_visit+1', FALSE);
$this->db->set('last_visit', 'NOW()', FALSE);
$this->db->update('visitas');
}
} else {
$data = array(
'ip_addr'=>$new_ip
);
$this->db->set('cant_visit', 'cant_visit+1', FALSE);
$this->db->set('first_visit', 'NOW()', FALSE);
$this->db->insert('visitas', $data);
}
My problem is, that the highlighted sector always return true, so I always get a new visit every time I click the menu bar. I tried different ways to do it, but no success so far.
The date field in my sql table (cant_visit) is a datetime.
Hope someone can help me!, thanks!

Answer 1

I answer myself:
public function new_visit($ip)
{
$new_ip = $ip;
$this->db->from('visitas');
$this->db->where('ip_addr', $new_ip);
$query = $this->db->get();
$count = $query->num_rows();
if ($count > 0) {
$currentv = new DateTime('NOW');
$currentv = $currentv->format('Y-m-d H:i:s'); // had to format this
$q = $this->db->query("SELECT TIMESTAMPDIFF(HOUR, '$currentv', last_visit) as timediff FROM visitas WHERE ip_addr = '$new_ip'");
$time_diff = $q->row()->timediff;
// return $time_diff; <-- just for testing
if ($time_diff > 10) {
$this->db->set('cant_visit', 'cant_visit+1', FALSE);
$this->db->set('last_visit', 'NOW()', FALSE);
$this->db->update('visitas');
}
} else {
$data = array(
'ip_addr'=>$new_ip
);
$this->db->set('cant_visit', 'cant_visit+1', FALSE);
$this->db->set('first_visit', 'NOW()', FALSE);
$this->db->insert('visitas', $data);
}
}
thanks!