这篇文章主要介绍了php通过exif_read_data函数获取图片的exif信息,默认情况下,PHP读取图片Exif信息模块是不开启的,我们需要先开启这个模块。开启Exif模块需要mbstring支持,这里就不详细说明了,我们来先看下函数的用法
php获取图片的exif信息,php自带一个exif_read_data函数可以用来读取图片的exif信息,代码来自php手册
- <?php
- echo "test1.jpg:<br />/n";
- $exif = exif_read_data('tests/test1.jpg', 'IFD0');
- echo $exif===false ? "No header data found.<br />/n" : "Image contains headers<br />/n";
- $exif = exif_read_data('tests/test2.jpg', 0, true);
- echo "test2.jpg:<br />/n";
- foreach ($exif as $key => $section) {
- foreach ($section as $name => $val) {
- echo "$key.$name: $val<br />/n";
- }
- }
- ?>
输出结果如下
- test1.jpg:
- No header data found.
- test2.jpg:
- FILE.FileName: test2.jpg
- FILE.FileDateTime: 1017666176
- FILE.FileSize: 1240
- FILE.FileType: 2
- FILE.SectionsFound: ANY_TAG, IFD0, THUMBNAIL, COMMENT
- COMPUTED.html: width="1" height="1"
- COMPUTED.Height: 1
- COMPUTED.Width: 1
- COMPUTED.IsColor: 1
- COMPUTED.ByteOrderMotorola: 1
- COMPUTED.UserComment: Exif test image.
- COMPUTED.UserCommentEncoding: ASCII
- COMPUTED.Copyright: Photo (c) M.Boerger, Edited by M.Boerger.
- COMPUTED.Copyright.Photographer: Photo (c) M.Boerger
- COMPUTED.Copyright.Editor: Edited by M.Boerger.
- IFD0.Copyright: Photo (c) M.Boerger
- IFD0.UserComment: ASCII
- THUMBNAIL.JPEGInterchangeFormat: 134
- THUMBNAIL.JPEGInterchangeFormatLength: 523
- COMMENT.0: Comment #1.
- COMMENT.1: Comment #2.
- COMMENT.2: Comment #3end
- THUMBNAIL.JPEGInterchangeFormat: 134
- THUMBNAIL.Thumbnail.Height: 1
- THUMBNAIL.Thumbnail.Height: 1
以上所述就是本文的全部内容了,希望大家能够喜欢。
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