영카트에서 상품이미지들 사이즈 조절 질문이요! 채택완료

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// 상품 이미지를 얻는다
function get_it_image($it_id, $width, $height=0, $anchor=false, $img_id='', $img_alt='')
{
    global $g5;

    if(!$it_id || !$width)
        return '';

    $sql = " select it_id, it_img1, it_img2, it_img3, it_img4, it_img5, it_img6, it_img7, it_img8, it_img9, it_img10 from {$g5['g5_shop_item_table']} where it_id = '$it_id' ";
    $row = sql_fetch($sql);

    if(!$row['it_id'])
        return '';

    for($i=1;$i<=10; $i++) {
        $file = G5_DATA_PATH.'/item/'.$row['it_img'.$i];
        if(is_file($file) && $row['it_img'.$i]) {
            $size = @getimagesize($file);
            if($size[2] < 1 || $size[2] > 3)
                continue;

            $filename = basename($file);
            $filepath = dirname($file);
            $img_width = $size[0];
            $img_height = $size[1];

            break;
        }
    }

    if($img_width && !$height) {
        $height = round(($width * $img_height) / $img_width);
    }

    if($filename) {
        //thumbnail($filename, $source_path, $target_path, $thumb_width, $thumb_height, $is_create, $is_crop=false, $crop_mode='center', $is_sharpen=true, $um_value='80/0.5/3')
        $thumb = thumbnail($filename, $filepath, $filepath, $width, $height, false, true, 'center', false, $um_value='80/0.5/3');
    }

    if($thumb) {
        $file_url = str_replace(G5_PATH, G5_URL, $filepath.'/'.$thumb);
        $img = '<img src="'.$file_url.'" width="'.$width.'" height="'.$height.'" alt="'.$img_alt.'"';
    } else {
        $img = '<img src="'.G5_SHOP_URL.'/img/no_image.gif" width="'.$width.'"';
        if($height)
            $img .= ' height="'.$height.'"';
        $img .= ' alt="'.$img_alt.'"';
    }

    if($img_id)
        $img .= ' id="'.$img_id.'"';
    $img .= '>';

    if($anchor)
        $img = '<a href="'.G5_SHOP_URL.'/item.php?it_id='.$it_id.'">'.$img.'</a>';

    return $img;
}
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