exif_read_data

array exif_read_data ( mixed $stream [, string $sections = NULL [, bool $arrays = false [, bool $thumbnail = false ]]] )

4.3.0  Can read all embedded IFD data including arrays (returned as such). Also the size of an embedded thumbnail is returned in a _THUMBNAIL_ subarray, and can return thumbnails in TIFF format. Also, there is no longer a maximum length for returned values (not until the memory limit has been reached).    4.3.0  If PHP has [mbstring](https://secure.php.net/manual/en/ref.mbstring.php) support, the user comment can automatically change encoding. Also, if the user comment uses _Unicode_ or _JIS_ encoding this encoding will automatically be changed according to the exif ini settings in php.ini    4.3.0  If the image contains any _IFD0_ data then _COMPUTED_ contains the entry _ByteOrderMotorola_ which is 0 for _little-endian_ (intel) and 1 for _big-endian_ (motorola) byte order. Also, _COMPUTED_ and _UserComment_ no longer only contain the first copyright entry if the datatype was wrong.    

<?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";
    }
}
?>

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

<?php
// Open a the file, this should be in binary mode
$fp = fopen('/path/to/image.jpg', 'rb'

if (!$fp) {
    echo 'Error: Unable to open image for reading';
    exit;
}

// Attempt to read the exif headers
$headers = exif_read_data($fp

if (!$headers) {
    echo 'Error: Unable to read exif headers';
    exit;
}

// Print the 'COMPUTED' headers
echo 'EXIF Headers:' . PHP_EOL;

foreach ($headers['COMPUTED'] as $header => $value) {
    printf(' %s => %s%s', $header, $value, PHP_EOL
}
?>

EXIF Headers:
 Height => 576
 Width => 1024
 IsColor => 1
 ByteOrderMotorola => 0
 ApertureFNumber => f/5.6
 UserComment =>
 UserCommentEncoding => UNDEFINED
 Copyright => Denis
 Thumbnail.FileType => 2
 Thumbnail.MimeType => image/jpeg