PHP : Function Reference : Exif Functions : exif_read_data PHP Examples Tutorials References

Example 600. exif_read_data() example

<?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";

    }

}
?>

The first call fails because the image has no header information.

The above example will output something similar to:

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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 ?>

Code Examples / Notes » exif_read_data

When reading EXIF information from the 'WINXP' group, you may need to change used encoding from the default "ISO-8859-15" to "UTF-8". This can be done in php.ini or in your code: <?php ini_set('exif.encode_unicode', 'UTF-8'); $exif = exif_read_data('TEST.JPG', 0, true); echo $exif['WINXP']['Title']; ?> Useful documentation about EXIF: http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/EXIF.html See also comments next to XPTitle and XPAuthor.

Using the exif methods to read WINXP data returns unexpected results unless both exif and mbstring are compiled statically. Please reference the following bug reports: Bug #31980 Bug #23105 Specifically, the last comment on #23105: "[8 Apr 2003 4:26pm UTC] edink@php.net This cannot be fixed due to the fact that mbstring has been removed from PHP core (it has been 'unbundled') and the rest of core files and other extensions cannot use mbstring functionality when it is compiled as a shared library (dll). " If exif is compiled statically (--enable-exif) and mbstring compiled as a DSO module (--enable-mbstring=shared) then exif_read_data may only return a single character rather than the entire string. Compiling both exif and mbstring statically (--enable-exif --enable-mbstring) resolves the issue.

some cameras (most higher models) have position senzor (gyroskope?) and taking-position is wrote in EXIF, here is simple script for automatic rotating images <?php $exif = exif_read_data($filename); $ort = $exif['IFD0']['Orientation']; switch($ort) { case 1: // nothing break; case 2: // horizontal flip $image->flipImage($public,1); break; case 3: // 180 rotate left $image->rotateImage($public,180); break; case 4: // vertical flip $image->flipImage($public,2); break; case 5: // vertical flip + 90 rotate right $image->flipImage($public, 2); $image->rotateImage($public, -90); break; case 6: // 90 rotate right $image->rotateImage($public, -90); break; case 7: // horizontal flip + 90 rotate right $image->flipImage($public,1); $image->rotateImage($public, -90); break; case 8: // 90 rotate left $image->rotateImage($public, 90); break; } ?> $image->rotateImage() is inspired by example of http://php.net/manual/en/function.imagerotate.php $image->flipImage() is inspired by http://php.net/manual/en/function.imagecopy.php#42803 (thank you)

I've just released the "PHP JPEG Metadata Toolkit" which allows reading, writing and displaying of EXIF information, and does not need the --enable-exif option in PHP4. It has been tested on 466 different models of digital cameras! It can decode the following EXIF makernotes: Agfa, Canon, Casio, Contax, Epson, Fujifilm, Konica, Minolta, Kyocera, Nikon, Olympus, Panasonic, Pentax (Asahi), Ricoh and Sony Additionaly it can decode IPTC, XMP, Photoshop IRB and many other types of JPEG metadata Try it out, and download it at: http://www.ozhiker.com/electronics/pjmt/index.html

exif_read_data

Reads the EXIF headers from JPEG or TIFF (PHP 4 >= 4.2.0, PHP 5)
array exif_read_data ( string filename [, string sections [, bool arrays [, bool thumbnail]]] )

Example 600. exif_read_data() example

Code Examples / Notes » exif_read_data

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exif_read_data

Reads the EXIF headers from JPEG or TIFF (PHP 4 >= 4.2.0, PHP 5) array exif_read_data ( string filename [, string sections [, bool arrays [, bool thumbnail]]] )

Example 600. exif_read_data() example

Code Examples / Notes » exif_read_data

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Reads the EXIF headers from JPEG or TIFF (PHP 4 >= 4.2.0, PHP 5)
array exif_read_data ( string filename [, string sections [, bool arrays [, bool thumbnail]]] )