How do I fill an array inside a while loop and get new scope each iteration?

Question

The problem is that I get only the last value comming from the Table. I think its because I am building the array while referencing its values to the same object, and it keeps c

Answer 1

You need to create a new object on each iteration:

while ($row=mysql_fetch_array($result))
{
    $nameAndCode = new stdClass;
    $nameAndCode->code = $row['country_code2'];
    $nameAndCode->name = $row['country_name'];           
    $namesArray[] = $nameAndCode;
} 

Otherwise you're referencing the same object over and over, and just overwriting its values.

You also can do this with arrays if you don't require objects:

while ($row=mysql_fetch_array($result))
{
    $nameAndCode = array();
    $nameAndCode['code'] = $row['country_code2'];
    $nameAndCode['name'] = $row['country_name'];           
    $namesArray[] = $nameAndCode;
} 

Or more concisely:

while ($row=mysql_fetch_array($result))
{
    $namesArray[] = array( 
        'code' => $row['country_code2'],
        'name' => $row['country_name']
    );
}