$array = array("alfabe"=>array("a","b","c"), "sayi" => array(1,2,3));

for ($i=0; $i < count($array['alfabe']); $i++)
{
    for ($j=0; $j < count($array['alfabe']); $j++)
    {
       echo $array['alfabe'][$i]."-".$array['sayi'][$j].PHP_EOL;
    }
}