可以'；使用EXIF Data PHP时，不要复制JPG

我已经做了大约4个小时了。我试了好几件事，我会在提问后解释。

我有来自JPG的所有EXIF数据（如下所列）

我想做的是用一个新名称将JPG重新保存到另一个文件夹中。这个新名称应该是去掉"GCM_TAG"后的$data["EXIF"]["UserComment"]。这是在拍摄照片之前在仓库扫描的条形码。

我没有收到任何错误，也没有收到任何警告，但图像从未显示。如果我将代码更改为没有$条形码，那么图像会突然出现。我试过打印$barcode，我试过检查变量的编码是什么，我试着使用fopen（）、file_put_contents（）和copy（），但都无济于事。每一个都有相同的结果。该文件夹有777权限，我可以很好地使用php添加/删除文件，并在这段代码中进行了测试。如有任何帮助，我们将不胜感激。

chdir("../test_import_photos");
$directory = getcwd();
echo __FILE__;
print "<br />";
print $directory;
if ($dirhandle = opendir($directory))
{
    while (false !== ($entry = readdir($dirhandle)))
    {
        if($entry == "." || $entry == "..")
        {
            //ignore, its just the folder commands
        }
        else
        {
            $data = exif_read_data($entry,"ANY_TAG",true,false);
            //print "2";
            //print "3";
            $barcode = str_replace("GCM_TAG","",$data["EXIF"]["UserComment"]);
            $filepath = "../test_import_photos_end/X" . $barcode .  ".JPG";
            copy($entry, $filepath);
        }
    }
    closedir($dirhandle);
}

Array(
    [FILE] => Array
    (
        [FileName] => RIMG0089.JPG
        [FileDateTime] => 1385421951
        [FileSize] => 2592157
        [FileType] => 2
        [MimeType] => image/jpeg
        [SectionsFound] => ANY_TAG, IFD0, THUMBNAIL, EXIF, INTEROP
    )
[COMPUTED] => Array
    (
        [html] => width="4000" height="3000"
        [Height] => 3000
        [Width] => 4000
        [IsColor] => 1
        [ByteOrderMotorola] => 1
        [ApertureFNumber] => f/3.5
        [UserComment] => GCM_TAG
        [UserCommentEncoding] => UNDEFINED
        [Copyright] =>                          
        [Thumbnail.FileType] => 2
        [Thumbnail.MimeType] => image/jpeg
    )
[IFD0] => Array
    (
        [ImageDescription] => Exif_JPEG_PICTURE                                              
        [Make] => RICOH      
        [Model] => G700 SE        
        [Orientation] => 1
        [XResolution] => 72/1
        [YResolution] => 72/1
        [ResolutionUnit] => 2
        [Software] => G700SE Firmware
        [DateTime] => 2013:11:25 02:53:04
        [YCbCrPositioning] => 2
        [Copyright] =>                          
        [Exif_IFD_Pointer] => 552
        [UndefinedTag:0xC4A5] => PrintIM0300d   

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[THUMBNAIL] => Array
    (
        [Compression] => 6
        [XResolution] => 72/1
        [YResolution] => 72/1
        [ResolutionUnit] => 2
        [JPEGInterchangeFormat] => 12276
        [JPEGInterchangeFormatLength] => 2724
    )
[EXIF] => Array
    (
        [ExposureTime] => 1/30
        [FNumber] => 350/100
        [ExposureProgram] => 2
        [ISOSpeedRatings] => 320
        [ExifVersion] => 0221
        [DateTimeOriginal] => 2013:11:25 02:53:04
        [DateTimeDigitized] => 2013:11:25 02:53:04
        [ComponentsConfiguration] => 
        [CompressedBitsPerPixel] => 184/100
        [ApertureValue] => 35/100
        [BrightnessValue] => 200/100
        [ExposureBiasValue] => 0/100
        [MaxApertureValue] => 361/100
        [MeteringMode] => 5
        [LightSource] => 0
        [Flash] => 16
        [FocalLength] => 500/100
        [MakerNote] => Ricoh

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[UserComment] => GCM_TAG11800038
        [FlashPixVersion] => 0100
        [ColorSpace] => 1
        [ExifImageWidth] => 4000
        [ExifImageLength] => 3000
        [InteroperabilityOffset] => 1732
        [ExposureMode] => 0
        [WhiteBalance] => 0
        [SceneCaptureType] => 0
        [Sharpness] => 0
    )
[INTEROP] => Array
    (
        [InterOperabilityIndex] => R98
        [InterOperabilityVersion] => 0100
    )

)