count

<?

$value = array(0, 1, 2);

$return = count($value);

echo $return;

?>

3

<?

class myclass implements Countable
{
    protected $mycount = 3;

    public function count()
    {
        return $this->mycount;
    }
}

$value = new myclass;

$return = count($value);

echo $return;

?>

3

<?

$value = array(0, 1, array(0, 1));
$mode = COUNT_NORMAL;

$return = count($value, $mode);

echo $return;

?>

3

<?

$value = array(0, 1, array(0, 1));
$mode = COUNT_RECURSIVE;

$return = count($value, $mode);

echo $return;

?>

5