# php-image-metadata

**Repository Path**: tao_jiangcheng/php-image-metadata

## Basic Information

- **Project Name**: php-image-metadata
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-01-16
- **Last Updated**: 2024-01-16

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# php-image-metadata

#### 介绍
参考：从php官网看到了这个[https://www.ozhiker.com/electronics/pjmt/index.html](https://www.ozhiker.com/electronics/pjmt/index.html)，与我现在的php7有点语法的不兼容，就小小的修改了下。  非常感谢这位大佬

#### 说明
对 jpeg 格式的图片 属性 xmp 进行 查看和编辑

#### 使用说明


```php
        $xmp = new Xmp;

        $jpeg = new Jpeg;

        $data = $jpeg->get_jpeg_header_data($filename);

        $xmpString = $xmp->get_XMP_text($data);

        $xmpArr = $xmp->read_XMP_array_from_text($xmpString);

        $xmpArr[0]['children'][0]['children'][0]['attributes']['dc:testwrite'] = date('Y-m-d H:i:s');

        $newXmp = $xmpArr;

        $newXmp = $xmp->write_XMP_array_to_text($newXmp);

        $rs = $xmp->put_XMP_text($data,$newXmp);

        $jpeg->put_jpeg_header_data($filename,$filename,$rs);
```


```
xmpArr:
Array
(
    [0] => Array
        (
            [tag] => x:xmpmeta
            [attributes] => Array
                (
                    [xmlns:x] => adobe:ns:meta/
                    [x:xmptk] => XMP Core 4.4.0-Exiv2
                )

            [children] => Array
                (
                    [0] => Array
                        (
                            [tag] => rdf:RDF
                            [attributes] => Array
                                (
                                    [xmlns:rdf] => http://www.w3.org/1999/02/22-rdf-syntax-ns#
                                )

                            [children] => Array
                                (
                                    [0] => Array
                                        (
                                            [tag] => rdf:Description
                                            [attributes] => Array
                                                (
                                                    [rdf:about] => 
                                                    [xmlns:dc] => http://purl.org/dc/elements/1.1/
                                                    [dc:aa] => 1
                                                    [dc:cc] => 0
                                                    [dc:testwrite] => 2024-01-16 07:08:45
                                                )

                                        )

                                )

                        )

                )

        )

)

```