function idOlustur($length)
{

$karakterler = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLM NOPQRSTUVWXYZ';
$rastgele = '';

for ($i = 0; $i < $length; $i++)
$rastgele .= $karakterler[rand(0, strlen($karakterler) - 1)];

return $rastgele;
}