read_exif_data
Name
read_exif_data — Obtains information about an image.
Synopsis
array read_exif_data([file]);
string file (optional):
Filename
Returns
Array of image information or FALSE on error
Description
Analyzes a portion of information in a JPEG image that's
commonly written to by digital cameras. This information
is known as the EXIF headers. Although the
information in each image can vary from manufacturer to
manufacturer, some useful information can be extracted
about the image, the camera, and how the image was taken.
To use this function, you must compile PHP with the
--enable-exif flag. Additionally, because the information
varies so much from manufacturer to manufacturer, not all
headers can be read from the image. A complete list of
available information can be found by inspecting
ext/exif/exif.c in the PHP source code.
Version
Existing since version 4.0.1
Example
Example 452. Display exif
image information
$exif = read_exif_data('testimage.jpg');
while(list($key, $val) = each($exif)) {
echo "$key => $val <BR>\n";
}
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
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