Руководство по PHP
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# exif_thumbnail

(PHP 4 >= 4.2.0, PHP 5)

exif_thumbnail -- Retrieve the embedded thumbnail of a TIFF or JPEG image

## Описание

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.

## Список параметров

`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.

## Возвращаемые значения

Returns the embedded thumbnail, or `FALSE` if the image contains no thumbnail.

## Список изменений

Версия | Описание
--- | ---
4.3.0 | The optional parameters `width`, `height`, and `imagetype` all became available.
4.3.0 | May return thumbnails in the TIFF format.

## Примеры

Пример 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'; } ?>`

## Смотрите также

exif_read_data()
image_type_to_mime_type()

Пред. | Начало | След.
exif_tagname | Уровень выше | read_exif_data