Передача переменных между запросам

//начало первого запроса
$query = "select `num_photogallery` from `doska_photos`";
$res = mysql_query($query) or die(mysql_error()); 
while ($row=mysql_fetch_array($res)) 
{
$cat=$row['num_photogallery'];//запрос галереи
}
 
//начало второго запроса
$query = "select `name_pg`,`id_photogallery` from `doska_photogallery`";
//$query = "select `num_photogallery` from `doska_photos`";
$res = mysql_query($query) or die(mysql_error()); 
while ($row=mysql_fetch_array($res)) 
{
 
$name=$row['name_pg'];  
$id_photo=$row['id_photogallery'];
echo"<div class='rodmen'>
<div id='content'>
<div id='menu2'>
//ссылка с переменной здесь нужна переменная $cat:good:
<a href=http://test1.ru/moduls/photogallery/adminka.php?gallery=$cat#id1>$name</a>
</div>
</div>
</div>";//Гет запрос
}
//конец запроса

$res = mysql_query($cat) or die(mysql_error());

$cat=$row['num_photogallery'

<a href=http://test1.ru/moduls/photogallery/adminka.php?gallery=$cat#id1>$name</a>

$cat=$row['num_photogallery']

$query = "select `name_pg`,`id_photogallery` from `doska_photogallery`";

$query = "select `name_pg`,`id_photogallery` from `doska_photogallery` WHERE cat = '$cat'"';

$query = "select `name_pg`,`id_photogallery` from `doska_photogallery` WHERE cat =".$cat;