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cakephp-thumber is a CakePHP plugin to create thumbnails
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cakephp-thumber is a CakePHP plugin to create thumbnails.

It uses intervention/image and provides:

  • ThumbCreator, an utility to create thumbnails;
  • ThumbHelper, a convenient helper that allows you to create thumbnails on the fly from your templates.

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Requirements and supported formats

cakephp-thumber requires GD Library (>=2.0) or Imagick PHP extension (>=6.5.7).
It's highly preferable to use Imagick, because It provides better performance and a greater number of supported formats.

Supported formats may vary depending on the library used.

GD Yes Yes Yes No No No No
Imagick Yes Yes Yes Yes Yes Yes Yes

For more information about supported format, please refer to the Intervention Image documentation.


You can install the plugin via composer:

$ composer require --prefer-dist mirko-pagliai/cakephp-thumber

NOTE: the latest version available requires at least CakePHP 3.7.

Instead, the cakephp3.2 branch is compatible with all previous versions of CakePHP from version 3.2.
This branch coincides with the 1.4.1 version of cakephp-thumber and in any case it will no longer receive new features but only bugfixes.

In this case, you can install the package as well:

$ composer require --prefer-dist mirko-pagliai/cakephp-thumber:dev-cakephp3.2

After installation, you have to edit APP/config/bootstrap.php to load the plugin:

Plugin::load('Thumber', ['bootstrap' => true, 'routes' => true]);

For more information on how to load the plugin, please refer to the Cookbook.

By default the plugin uses the APP/tmp/thumbs directory to save the thumbnails. So you have to create the directory and make it writable:

$ mkdir tmp/thumbs && chmod 775 tmp/thumbs

If you want to use a different directory, read below.


The plugin uses some configuration parameters and you can set them using the \Cake\Core\Configure class, before loading the plugin.

For example, you can do this at the bottom of the file APP/config/app.php of your application.

Note: up to the 1.0.4 version, the configuration parameters had the Thumbs name as a prefix. Starting with the 1.1.0 version, they have the plugin name (Thumber) as a prefix.

Configuration values

Configure::write('Thumber.driver', 'imagick');

Setting Thumber.driver, you can choose which driver to use for the creation of thumbnails. Valid values are imagick or gd.

Configure::write('', TMP . 'thumbs');

Setting, you can use another directory where the plugin will save thumbnails.

How to use

See our wiki:

And refer to our API.


The library (GD or Imagick) to be tested is set by the tests/bootstrap.php file, using the THUMBER_DRIVER environment variable. By default, Imagick is used.

For example:

if (!getenv('THUMBER_DRIVER')) {

Configure::write('Thumber.driver', getenv('THUMBER_DRIVER'));

Moreover, some tests belong to the imageEquals group. These tests generate thubnails and compare them with pre-loaded thumbnails (inside tests/comparing_files/).
By default, these tests are not performed, because the images may be different if generated from different environments and systems.

To exclude these tests, you should run:

vendor/bin/phpunit --exclude-group imageEquals


For transparency and insight into our release cycle and to maintain backward compatibility, Thumber will be maintained under the Semantic Versioning guidelines.

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