그누보드 쇼핑몰 상품등록 파일 업로드 추가 관련

<?php
    if($it['it_id']) {
		for($tech_data=1; $tech_data<=28; $tech_data++) {
        for($i=0; $row=sql_fetch_array($result); $i++) {
            $nozzle_id = $row['io_id'];
            $nozzle_val = explode(chr(30), $nozzle_id);
            $nozzle_subject = $nozzle_val[0];
            $nozzle_use = $row['io_use'];
			$nozzle_ = $row['iot_'.$tech_data];
			$nozzle_unit = $row['iot_'.$tech_data.'_unit'];
			$nozzle_img = $row['iot_'.$tech_data.'_img'];
    ?>

//--- 생략 ---

<?php for($tech_data=1; $tech_data<=28; $tech_data++) { ?>
    <tr>
        <td class="td_nozzle_3" colspan="2">
                <label for="nozzle_<?php echo $tech_data; ?>_img_<?php echo $i; ?>">다운로드 <?php echo $tech_data ?> 파일</label>
                <input type="file" name="it_<?php echo $tech_data; ?>_img" value="<?php echo get_text($row['iot_'.$tech_data.'_img']) ?>" id="it_<?php echo $tech_data; ?>_img" style="width:300px">
                <?php echo get_text($it['iot_'.$tech_data.'_img']) ?>
        </td>
    </tr>

// 노즐 정보 -----------------------------------------
if($w == "u") {
    $sql = " select iot_1_img
                from {$g5['g5_shop_item_nozzle_table']}
                where it_id = '$it_id' ";
    $file = sql_fetch($sql);

    $it_1_img    = $file['iot_1_img'];

}

$it_nozzle_dir = G5_DATA_PATH.'/nozzle';

// 노즐삭제
if ($it_nozzle1_del) {
    $file_nozzle1 = $it_nozzle_dir.'/'.$it_1_img;
    @unlink($file_nozzle1);
    delete_nozzle_thumbnail(dirname($file_nozzle1), basename($file_nozzle1));
    $it_1_img = '';
}

// 노즐업로드
if ($_FILES['iot_1_img']['name']) {
    if($w == 'u' && $it_1_img) {
        $file_nozzle1 = $it_nozzle_dir.'/'.$it_1_img;
        @unlink($file_nozzle1);
        delete_nozzle_thumbnail(dirname($file_nozzle1), basename($file_nozzle1));
    }
    $it_1_img = it_nozzle_upload($_FILES['iot_1_img']['tmp_name'], $_FILES['iot_1_img']['name'], $it_download_dir.'/'.$it_id);
}

// 노즐 끝 -------------------------------------------

// 노즐 업로드
function it_nozzle_upload($srcfile, $filename, $dir)
{
    if($filename == '')
        return '';

    if(!is_dir($dir)) {
        @mkdir($dir, G5_DIR_PERMISSION);
        @chmod($dir, G5_DIR_PERMISSION);
    }

    $filename = preg_replace("/\s+/", "", $filename);
    $filename = preg_replace("/[#\&\+\-%@=\/\\:;,'\"\^`~\|\!\?\*\$#<>\(\)\[\]\{\}]/", "", $filename);

    $filename = preg_replace_callback(
                          "/[가-힣]+/",
                          create_function('$matches', 'return base64_encode($matches[0]);'),
                          $filename);

    upload_file($srcfile, $filename, $dir);

    $file = str_replace(G5_DATA_PATH.'/nozzle/', '', $dir.'/'.$filename);

    return $file;
}

// 노즐 썸네일 삭제
function delete_nozzle_thumbnail($dir, $file)
{
    if(!$dir || !$file)
        return;

    $filename = preg_replace("/\.[^\.]+$/i", "", $file); // 확장자제거

    $files = glob($dir.'/thumb-'.$filename.'*');

    if(is_array($files)) {
        foreach($files as $thumb_file) {
            @unlink($thumb_file);
        }
    }
}

$g5['g5_shop_item_nozzle_table'] = G5_SHOP_TABLE_PREFIX.'item_nozzle'; // 상품노즐 테이블