php - Windows 显示但 PHP 不显示的 EXIF(或其他元数据)数据

Question

我正在努力从一位摄影师提供给我的客户的 JPEG 中提取一些信息。

在 Windows 下检查时，所有图像都包含名为标签的字段中的数据:

为了首先进行一些测试，我制作了以下脚本并使用以下代码迭代二进制文件头中的条目。

有时我会得到 ImageDescription 的值。通常在版权和作者中显示文本，但标签内容永远不会显示在这里，它是客户最希望自动化的内容的捕获。

谁能告诉我如何访问标签字段内容？

上传的文件副本是here .

更新 - 根据 Tiger-222 的响应，将 IDF0 更改为 ANY_TAG 并将第三个参数 true 添加到 exif_read_data()。还在帖子末尾添加了 print_r 输出

更新 2 添加了请求的 error_display() 和 ini_set() 调用，还尝试了 exif_read_data() 第 2 个参数 0 代替 'ANY_TAG' 每 https://php.net/manual/en/function.exif-read-data.php

<?php
    ini_set('display_errors', 1);
    ini_set('exif.encode_unicode', 'UTF-8');  // To see WINXP values
    error_reporting(-1);        
    $n = (intval($_GET['n'])) ? $_GET['n'] : 99;
    echo "ANI_$n.jpg:<br />\n";
    $exif = exif_read_data("ANI_$n.jpg", 'ANY_TAG', true);
    echo $exif===false ? "No header data found.<br />\n" : "Image contains the following headers:<br><br />\n";

    if ($exif) {
        foreach ($exif as $key => $section) {
            if (is_array($section)) {
                foreach ($section as $name => $val) {
                    echo "$key.$name: $val<br />\n";
                }
            } else {
                echo "$key: $section<br>\n";
            }
        }
    }
?>

鸣鹤图片脚本转储内容如下:

ANI_69.jpg:
Image contains the following headers:

FileName: ANI_69.jpg
FileDateTime: 1428255617
FileSize: 2448245
FileType: 2
MimeType: image/jpeg
SectionsFound: ANY_TAG, IFD0, THUMBNAIL, EXIF
COMPUTED.html: width="1798" height="2697"
COMPUTED.Height: 2697
COMPUTED.Width: 1798
COMPUTED.IsColor: 1
COMPUTED.ByteOrderMotorola: 0
COMPUTED.Copyright: Photographer name here
COMPUTED.Thumbnail.FileType: 2
COMPUTED.Thumbnail.MimeType: image/jpeg
ImageWidth: 1798
ImageLength: 2697
BitsPerSample.0: 8
BitsPerSample.1: 8
BitsPerSample.2: 8
PhotometricInterpretation: 2
Orientation: 1
SamplesPerPixel: 3
XResolution: 1000000/10000
YResolution: 1000000/10000
ResolutionUnit: 2
Software: Adobe Photoshop CS6 (Macintosh)
DateTime: 2014:12:28 19:17:36
Artist: Photographer name here
Copyright: Photographer name here
Exif_IFD_Pointer: 316
THUMBNAIL.Compression: 6
THUMBNAIL.XResolution: 72/1
THUMBNAIL.YResolution: 72/1
THUMBNAIL.ResolutionUnit: 2
THUMBNAIL.JPEGInterchangeFormat: 554
THUMBNAIL.JPEGInterchangeFormatLength: 3211
ExifVersion: 0230
DateTimeOriginal: 2014:11:03 11:14:27
DateTimeDigitized: 2014:11:03 11:14:27
SubSecTimeOriginal: 76
SubSecTimeDigitized: 76
ColorSpace: 65535
ExifImageWidth: 1798
ExifImageLength: 2697

这是来自 $exif = exif_read_data("ANI_$n.jpg", 'ANY_TAG', true);

的 $exif 转储

Array
(
    [FILE] => Array
        (
            [FileName] => ANI_69.jpg
            [FileDateTime] => 1428255617
            [FileSize] => 2448245
            [FileType] => 2
            [MimeType] => image/jpeg
            [SectionsFound] => ANY_TAG, IFD0, THUMBNAIL, EXIF
        )

    [COMPUTED] => Array
        (
            [html] => width="1798" height="2697"
            [Height] => 2697
            [Width] => 1798
            [IsColor] => 1
            [ByteOrderMotorola] => 0
            [Copyright] => Digital Roux Photography LLC
            [Thumbnail.FileType] => 2
            [Thumbnail.MimeType] => image/jpeg
        )

    [IFD0] => Array
        (
            [ImageWidth] => 1798
            [ImageLength] => 2697
            [BitsPerSample] => Array
                (
                    [0] => 8
                    [1] => 8
                    [2] => 8
                )

            [PhotometricInterpretation] => 2
            [Orientation] => 1
            [SamplesPerPixel] => 3
            [XResolution] => 1000000/10000
            [YResolution] => 1000000/10000
            [ResolutionUnit] => 2
            [Software] => Adobe Photoshop CS6 (Macintosh)
            [DateTime] => 2014:12:28 19:17:36
            [Artist] => Digital Roux Photography LLC
            [Copyright] => Digital Roux Photography LLC
            [Exif_IFD_Pointer] => 316
        )

    [THUMBNAIL] => Array
        (
            [Compression] => 6
            [XResolution] => 72/1
            [YResolution] => 72/1
            [ResolutionUnit] => 2
            [JPEGInterchangeFormat] => 554
            [JPEGInterchangeFormatLength] => 3211
        )

    [EXIF] => Array
        (
            [ExifVersion] => 0230
            [DateTimeOriginal] => 2014:11:03 11:14:27
            [DateTimeDigitized] => 2014:11:03 11:14:27
            [SubSecTimeOriginal] => 76
            [SubSecTimeDigitized] => 76
            [ColorSpace] => 65535
            [ExifImageWidth] => 1798
            [ExifImageLength] => 2697
        )

)

Answer 1

三分(感谢 jerrygarciuh 的耐心和帮助)。

1) 要查看额外信息，只需将第三个参数传递给 true:

$exif = exif_read_data("ANI_$n.jpg", 'IFD0', true);

如解释here , 它将强制转换为数组以避免部分之间的冲突。您会在 IFD0.Keywords 关键字下找到标签。

2) There is an issue使用 WINXP.Keywords。要正确显示这些信息，只需将编码设置为 UFT-8:

ini_set('exif.encode_unicode', 'UTF-8');

3)感谢this question from Ferdy ，可以使用 iptcparse 读取 Lightroom 设置的额外信息.这是完整的脚本:

ini_set('exif.encode_unicode', 'UTF-8');  // To see WINXP values

// Exif informations -- limited by PHP
$exif = exif_read_data("ANI_$n.jpg", 'ANY_TAG', true);
print_r($exif);

// Additionnal informations from Lightroom
getimagesize("ANI_$n.jpg", $infos);
if ( isset($infos['APP13']) ) {
    print_r(iptcparse($infos['APP13']));
}

输出:

Array
(
    [FILE] => Array
        (
            [FileName] => ANI_69.or.jpg
            [FileDateTime] => 1431382165
            [FileSize] => 2450950
            [FileType] => 2
            [MimeType] => image/jpeg
            [SectionsFound] => ANY_TAG, IFD0, THUMBNAIL, EXIF, WINXP
        )

    [COMPUTED] => Array
        (
            [html] => width="1798" height="2697"
            [Height] => 2697
            [Width] => 1798
            [IsColor] => 1
            [ByteOrderMotorola] => 1
            [Copyright] => Digital Roux Photography LLC
            [Thumbnail.FileType] => 2
            [Thumbnail.MimeType] => image/jpeg
        )

    [IFD0] => Array
        (
            [ImageWidth] => 1798
            [ImageLength] => 2697
            [BitsPerSample] => Array
                (
                    [0] => 8
                    [1] => 8
                    [2] => 8
                )

            [PhotometricInterpretation] => 2
            [ImageDescription] => Rusty Costanza / Digital Roux Photography
            [Orientation] => 1
            [SamplesPerPixel] => 3
            [XResolution] => 1000000/10000
            [YResolution] => 1000000/10000
            [ResolutionUnit] => 2
            [Software] => Adobe Photoshop CS6 (Macintosh)
            [DateTime] => 2014:12:28 19:17:36
            [Artist] => Digital Roux Photography LLC
            [Copyright] => Digital Roux Photography LLC
            [Exif_IFD_Pointer] => 2468
            [Title] => Rusty Costanza / Digital Roux Photography
            [Keywords] => whooping crane
            [UndefinedTag:0xEA1C] => �
        )

    [THUMBNAIL] => Array
        (
            [Compression] => 6
            [XResolution] => 72/1
            [YResolution] => 72/1
            [ResolutionUnit] => 2
            [JPEGInterchangeFormat] => 4894
            [JPEGInterchangeFormatLength] => 3371
        )

    [EXIF] => Array
        (
            [ExifVersion] => 0230
            [DateTimeOriginal] => 2014:11:03 11:14:27
            [DateTimeDigitized] => 2014:11:03 11:14:27
            [SubSecTimeOriginal] => 76
            [SubSecTimeDigitized] => 76
            [ColorSpace] => 65535
            [ExifImageWidth] => 1798
            [ExifImageLength] => 2697
            [UndefinedTag:0xEA1C] => �
        )

    [WINXP] => Array
        (
            [Title] => 刀甀猀琀礀 䌀漀猀琀愀渀稀愀 ⼀ 䐀椀最椀琀愀氀 刀漀甀砀 倀栀漀琀漀最爀愀瀀栀礀ഀ
            [Keywords] => 眀栀漀漀瀀椀渀最 挀爀愀渀攀
        )
)

Array
(
    [1#090] => Array
        (
            [0] => 
        )

    [2#000] => Array
        (
            [0] => 
        )

    [2#055] => Array
        (
            [0] => 20141103
        )

    [2#060] => Array
        (
            [0] => 111427+0000
        )

    [2#090] => Array
        (
            [0] => New Orleans
        )

    [2#025] => Array
        (
            [0] => whooping crane
        )

    [2#080] => Array
        (
            [0] => Digital Roux Photography LLC
        )

    [2#120] => Array
        (
            [0] => Rusty Costanza / Digital Roux Photography
        )

    [2#116] => Array
        (
            [0] => Digital Roux Photography LLC
        )

    [2#221] => Array
        (
            [0] => 0:0:0:-00001
        )

    [2#062] => Array
        (
            [0] => 20141103
        )
)

顺便说一句，漂亮的照片;)