Php uses the exif_read_data function to obtain the exif information of an image.

This article describes how to use the exif_read_data function in php to obtain the exif information of an image. by default, PHP does not enable the Exif information module for reading images. we need to enable this module first. To enable the Exif module, mbstring support is required. we will use php to obtain the exif information of the image. The php built-in exif_read_data function can be used to read the exif information of the image. the code is from the php Manual.

<?phpecho "test1.jpg:
\n";$exif = exif_read_data('tests/test1.jpg', 'IFD0');echo $exif===false ? "No header data found.
\n" : "Image contains headers
\n"; $exif = exif_read_data('tests/test2.jpg', 0, true);echo "test2.jpg:
\n";foreach ($exif as $key => $section) {  foreach ($section as $name => $val) {    echo "$key.$name: $val
\n";  }}?>

The output result is as follows:

test1.jpg:No header data found.test2.jpg:FILE.FileName: test2.jpgFILE.FileDateTime: 1017666176FILE.FileSize: 1240FILE.FileType: 2FILE.SectionsFound: ANY_TAG, IFD0, THUMBNAIL, COMMENTCOMPUTED.html: width="1" height="1"COMPUTED.Height: 1COMPUTED.Width: 1COMPUTED.IsColor: 1COMPUTED.ByteOrderMotorola: 1COMPUTED.UserComment: Exif test image.COMPUTED.UserCommentEncoding: ASCIICOMPUTED.Copyright: Photo (c) M.Boerger, Edited by M.Boerger.COMPUTED.Copyright.Photographer: Photo (c) M.BoergerCOMPUTED.Copyright.Editor: Edited by M.Boerger.IFD0.Copyright: Photo (c) M.BoergerIFD0.UserComment: ASCIITHUMBNAIL.JPEGInterchangeFormat: 134THUMBNAIL.JPEGInterchangeFormatLength: 523COMMENT.0: Comment #1.COMMENT.1: Comment #2.COMMENT.2: Comment #3endTHUMBNAIL.JPEGInterchangeFormat: 134THUMBNAIL.Thumbnail.Height: 1THUMBNAIL.Thumbnail.Height: 1

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