escaping null values

[eluser]ken_t[/eluser]
i don't know if thats the best way for it. As i'm in hurry thats is the best i could think:

i think it will make it a little heavier than checking only the int ones, but its the faster way i could think.

Code:

$data = array(
  'name' => $this->input->post('name'),
  'age' => $this->input->post('age'),
  'something' => $this->input->post('something'),
  'something2' => $this->input->post('something2'),
);


$keys = array_keys($data);

foreach($keys as $key){
   if(empty($data[$key])){
      $data[$key] = null;
   }
}