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GraphicsMagick 1.3.5 (Default branch)
01-27-2009
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EXIF_THUMBNAIL(3) 1 EXIF_THUMBNAIL(3) exif_thumbnail - Retrieve the embedded thumbnail of a TIFF or JPEG image SYNOPSIS
string exif_thumbnail (string $filename, [int &$width], [int &$height], [int &$imagetype]) DESCRIPTION
exif_thumbnail(3) reads the embedded thumbnail of a TIFF or JPEG image. If you want to deliver thumbnails through this function, you should send the mimetype information using the header(3) function. It is possible that exif_thumbnail(3) cannot create an image but can determine its size. In this case, the return value is FALSE but $width and $height are set. PARAMETERS
o $filename - The name of the image file being read. This image contains an embedded thumbnail. o $width - The return width of the returned thumbnail. o $height - The returned height of the returned thumbnail. o $imagetype - The returned image type of the returned thumbnail. This is either TIFF or JPEG. RETURN VALUES
Returns the embedded thumbnail, or FALSE if the image contains no thumbnail. EXAMPLES
Example #1 exif_thumbnail(3) example <?php if (array_key_exists('file', $_REQUEST)) { $image = exif_thumbnail($_REQUEST['file'], $width, $height, $type); } else { $image = false; } if ($image!==false) { header('Content-type: ' .image_type_to_mime_type($type)); echo $image; exit; } else { // no thumbnail available, handle the error here echo 'No thumbnail available'; } ?> SEE ALSO
exif_read_data(3), image_type_to_mime_type(3). PHP Documentation Group EXIF_THUMBNAIL(3)