converting a number base 10 to base 62 (a-zA-Z0-9)

Question

I have a number in base 10. Is there anyway to translate it to a base 62?

Example:

echo convert(12324324);
// returns Yg3 (fantasy example here)
         


        

Answer 1

have an array of characters like:

$chars = array(
    1 => 'a',
    2 => 'b',
    //....
    27 => 'A',
    28 => 'B'
);

function getCharacter($key)
{
    if(array_key_exists($key, $chars[$key]))
        return $chars[$key];
    return false;
}

function getNumber($char)
{
    return array_search($char, $chars);
}