Sonunda istediğim oldu.

$uye_secim_no[5]   = array("5","6","7");
$uye_secim_no[6]   = array("1","2","3");
$uye_secim_no[7]   = array("8","10");
$uye_secim_kontrol = array("1","2","3","4","5","6","7","8","9","10");


$key_sonuc = '';
for($i = 0; $i < count($uye_secim_kontrol); $i++)
{
   $msc = $uye_secim_kontrol[$i];

   foreach($uye_secim_no as $key => $fv_1)
   {
      if(in_array($msc,$fv_1))
      {
         $key_sonuc .= $key.'-';
      }
   }
   $key_sonuc .= $msc.'|';
}

$key_sonuc_e = explode("|",$key_sonuc);

foreach($key_sonuc_e as $fv_1)
{
   $fv_1_e = explode("-",$fv_1);

   if(!empty($fv_1_e[0]) && !empty($fv_1_e[1]))
   {
      echo " key :".$fv_1_e[0];
      echo " value :".$fv_1_e[1];
   }
   else
   {
      if(!empty($fv_1_e[0]))
      {
         echo " value :".$fv_1_e[0];
      }
   }
   echo "<br />";
}

Sonuç

key :6 value :1
key :6 value :2
key :6 value :3
value :4
key :5 value :5
key :5 value :6
key :5 value :7
key :7 value :8
value :9
key :7 value :10