우편번호 연결이 안되네요...도와주세요...

<?
include_once("./_common.php");
/* 기존의 DB에서 불러오는 방식
if ($addr1)
{
$zipfile = file("./zip.db");
$search_count = 0;

while ($zipcode = each($zipfile))
{
if(strstr(substr($zipcode[1],9,512), $addr1))
{
$list[$search_count][zip1] = substr($zipcode[1],0,3);
$list[$search_count][zip2] = substr($zipcode[1],4,3);
$addr = explode(" ", substr($zipcode[1],8));

if ($addr[sizeof($addr)-1])
{
$list[$search_count][addr] = str_replace($addr[sizeof($addr)-1], "", substr($zipcode[1],8));
$list[$search_count][bunji] = trim($addr[sizeof($addr)-1]);
}
else
$list[$search_count][addr] = substr($zipcode[1],8);

$list[$search_count][encode_addr] = urlencode($list[$search_count][addr]);
$search_count++;
}
}

if (!$search_count) alert("찾으시는 주소가 없습니다.");
}
*/

if ($addr1)
{

//$sql = " select * from zipcode where zp_dong like '%$addr1%' order by zp_sido, zp_gugun, zp_dong ";
$sql = " select * from $g4[zipcode] where zp_dong like '%$addr1%' order by zp_sido, zp_gugun, zp_dong ";
echo $sql;
//echo '<xmp>';
//print_r($g4);
//echo '</xmp>';

$result = mysql_query($sql);
$search_count = 0;
for ($i=0; $row=sql_fetch_array($result); $i++)
{
$list[$i][zip1] = substr($row[zp_code], 0, 3);
$list[$i][zip2] = substr($row[zp_code], 3, 3);
$list[$i][addr] = "$row[zp_sido] $row[zp_gugun] $row[zp_dong]";
$list[$i][bunji] = $row[zp_bunji];
$list[$i][encode_addr] = urlencode($list[$i][addr1]);
$search_count++;
}

if (!$search_count)
alert("찾으시는 주소가 없습니다.");
}


$g4[title] = "우편번호 검색";
include_once("$g4[path]/ahead.sub.php");

$member_skin_path = "$g4[path]/skin/member/$config[cf_member_skin]";
include_once("$member_skin_path/zip.skin.php");

include_once("$g4[path]/tail.sub.php");
?>