exif_thumbnail
exif_thumbnail
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
exif_thumbnail — Retrieve the embedded thumbnail of a TIFF or JPEG image
Description
string exif_thumbnail ( string $filename [, int &$width [, int &$height [, int &$imagetype ]]] )
exif_thumbnail() 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() function.
It is possible that exif_thumbnail() cannot create an image but can determine its size. In this case, the return value is FALSE but width and height are set.
Parameters
-
filename -
The name of the image file being read. This image contains an embedded thumbnail.
-
width -
The return width of the returned thumbnail.
-
height -
The returned height of the returned thumbnail.
-
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() 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() - Reads the EXIF headers from JPEG or TIFF
- image_type_to_mime_type() - Get Mime-Type for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetype
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.exif-thumbnail.php
