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If you are new to PHP or just need to refresh your skills, this is the place to start. This series of tutorials will give you the basic knowledge you will need to create a simple PHP website.

PHP is a reflective programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses.

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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

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.

ChangeLog

VersionDescription
4.3.0 The optional parameters width, height, and imagetype all became available.
4.3.0 May return thumbnails in the TIFF format.

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()
image_type_to_mime_type()

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Another Useful functions:


function.read-exif-data | function.exif-thumbnail | function.exif-tagname | function.exif-read-data | function.exif-imagetype |


PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.