$sql = " select * from g5_board_file where wr_id = '$wr_id' and bo_table = '$bo_table'";
$qr = sql_query($sql);

for ($i=0; $row=sql_fetch_array($qr); $i++) {
$bf_file[$i]= $row[bf_file];

if ($bf_file[$i])
{
    $img .= "<img src='http://$_SERVER[SERVER_NAME]/data/file/$bo_table/$bf_file[$i]'>";
}

}