(PHP 4 >= 4.2.0, PHP 5)
exif_thumbnail — Retrieve the embedded thumbnail of a TIFF or JPEG image
$filename
[, int &$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.
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.
Returns the embedded thumbnail, or FALSE if the image contains no
thumbnail.
| Wersja | Opis |
|---|---|
| 4.3.0 |
The optional parameters width,
height, and imagetype
all became available.
|
| 4.3.0 | May return thumbnails in the TIFF format. |
Przykład #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';
}
?>