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This bundle provides easy image manipulation support for Symfony2. For example, with this bundle, the following is possible:

<img src="{{ '/relative/path/to/image.jpg' | apply_filter('thumbnail') }}" />

This will perform the transformation called thumbnail, which you can define to do a number of different things, such as resizing, cropping, drawing, masking, etc.

This bundle integrates the standalone PHP "Imagine library".


Installation is a quick 3 step process:

  1. Download AvalancheImagineBundle using composer
  2. Enable the Bundle
  3. Configure your application's config.yml

Step 1: Download AvalancheImagineBundle using composer

Add AvalancheImagineBundle in your composer.json:

composer require avalanche123/imagine-bundle

Composer will install the bundle to your project's vendor/avalanche123/imagine-bundle directory.

Step 2: Enable the bundle

Enable the bundle in the kernel:

// app/AppKernel.php

public function registerBundles()
    $bundles = array(
        // ...
        new Avalanche\Bundle\ImagineBundle\AvalancheImagineBundle(),

Step3: Register the bundle's routes

Finally, add the following to your routing file:

# app/config/routing.yml

    resource: .
    type:     imagine

Congratulations! You're ready to rock your images!

Basic Usage

This bundle works by configuring a set of filters and then applying those filters to images inside a template. So, start by creating some sort of filter that you need to apply somewhere in your application. For example, suppose you want to thumbnail an image to a size of 120x90 pixels:

# app/config/config.yml

            type:    thumbnail
            options: { size: [120, 90], mode: outbound }

You can also change the quality and the format you want to use to save our image :

# app/config/config.yml

            type:    thumbnail
            options: { size: [120, 90], mode: outbound, quality: 100, format: png }

You've now defined a filter called my_thumb that performs a thumbnail transformation. We'll learn more about available transformations later, but for now, this new filter can be used immediately in a template:

<img src="{{ '/relative/path/to/image.jpg' | apply_filter('my_thumb') }}" />

Or if you're using PHP templates:

<img src="<?php $this['imagine']->filter('/relative/path/to/image.jpg', 'my_thumb') ?>" />

Behind the scenes, the bundle applies the filter(s) to the image on the first request and then caches the image to a similar path. On the next request, the cached image would be served directly from the file system.

In this example, the final rendered path would be something like /media/cache/my_thumb/relative/path/to/image.jpg. This is where Imagine would save the filtered image file.

HTTP Cache Headers

  • cache_type - one of the three values: false, public or private. Setting false disables caching i.e. sets Cache-Control: no-cache.

    default: false

  • cache_expires - Sets time when cache expires. Uses format that the DateTime parser understands. Expression will be prefixed with + so expression should be like 2 weeks. Used only when cache_type equal public or private.

    default: 1 day

Configuration example:

# app/config/config.yml

            type:    thumbnail
            options: { size: [120, 90], mode: outbound, cache_type: public, cache_expires: 2 weeks }

Cache headers are set only for first request when image is generated. To solve this issue you should add additional configuration for your web server. Example for apache web server:

<IfModule mod_expires.c>
    <Directory "/path/to/web/media/cache">
        ExpiresActive On
        ExpiresDefault "access plus 2 weeks"


The default configuration for the bundle looks like this:

    source_root:  %kernel.root_dir%/../web
    web_root:     %kernel.root_dir%/../web
    cache_prefix: media/cache
    driver:       gd
    filters:      []

There are several configuration options available:

  • source_root - can be set to the absolute path to your original image's directory. This option allows you to store the original image in a different location from the web root. Under this root the images will be looked for in the same relative path specified in the apply_filter template filter.

    default: %kernel.root_dir%/../web

  • web_root - must be the absolute path to you application's web root. This is used to determine where to put generated image files, so that apache will pick them up before handing the request to Symfony2 next time they are requested.

    default: %kernel.root_dir%/../web

  • cache_prefix - this is also used in the path for image generation, so as to not clutter your web root with cached images. For example by default, the images would be written to the web/media/cache/ directory.

    default: media/cache

  • driver - one of the three drivers: gd, imagick, gmagick

    default: gd

  • filters - specify the filters that you want to define and use

Each filter that you specify have the following options:

  • type - determine the type of filter to be used, refer to Filters section for more information
  • options - options that should be passed to the specific filter type
  • path - override the global cache_prefix and replace it with this path
  • source_root - override the global source_root and replace it with this path

Built-in Filters

Currently, this bundles comes with just one built-in filter: thumbnail.


The thumbnail filter, as the name implies, performs a thumbnail transformation on your image. The configuration looks like this:

        type:    thumbnail
        options: { size: [120, 90], mode: outbound }

The mode can be either outbound or inset.


The resize filter may be used to simply change the width and height of an image irrespective of its proportions.

Consider the following configuration example, which defines two filters to alter an image to an exact screen resolution:

            type:    resize
            options: { size: [320, 200] }
            type:    resize
            options: { size: [1920, 1200] }


The relative_resize filter may be used to heighten, widen, increase or scale an image with respect to its existing dimensions. These options directly correspond to methods on Imagine's BoxInterface.

Given an input image sized 50x40 (width, height), consider the following annotated configuration examples:

            type:    relative_resize
            options: { heighten: 60 } # Transforms 50x40 to 75x60
            type:    relative_resize
            options: { widen: 32 }    # Transforms 50x40 to 40x32
            type:    relative_resize
            options: { increase: 10 } # Transforms 50x40 to 60x50
            type:    relative_resize
            options: { scale: 2.5 }   # Transforms 50x40 to 125x100

If you prefer using Imagine without a filter configuration, the RelativeResize class may be used directly.


The paste filter pastes an image into your image.

            type:        paste
                image:   %kernel.root_dir%/Resources/image.png  # path to image
                x:       right                                  # [left|right|center] or integer
                y:       bottom                                 # [top|bottom|middle] or integer


With chain filter you can apply some filters on your image. You can quite simply create a watermark filter:

            type:                chain
                    thumbnail:                                          # filter type
                        size:    [100, 100]                             # filter options
                        mode:    outbound
                        image:   %kernel.root_dir%/Resources/image.png
                        x:       right
                        y:       bottom


The crop filter crop an image with start coordinate, and size dimension.

            type   : crop
            options: { start: [0, 0], size: [100, 100] } #crop image with 100x100 square box

Load your Custom Filters

The ImagineBundle allows you to load your own custom filter classes. The only requirement is that each filter loader implement the following interface:


To tell the bundle about your new filter loader, register it in the service container and apply the following tag to it (example here in XML):

<tag name="imagine.filter.loader" filter="my_custom_filter" />

For more information on the service container, see the Symfony2 Service Container documentation.

You can now reference and use your custom filter when defining filters you'd like to apply in your configuration:

        type:    my_custom_filter
        options: { }

For an example of a filter loader implementation, refer to Avalanche\Bundle\ImagineBundle\Imagine\Filter\Loader\ThumbnailFilterLoader.


If you are generating your image names from multiple parts in a Twig template, please be aware that Twig applies filters before concatenation, so

<img src="{{ '/relative/path/to/' ~ some_variable ~ '.jpg' | apply_filter('my_thumb') }}" />

will apply your filter to '.jpg', and then concatenate the result to '/relative/path/to/' and some_variable. So the correct invocation would be

<img src="{{ ('/relative/path/to/' ~ some_variable ~ '.jpg') | apply_filter('my_thumb') }}" />

Using as a service

You can use ImagineBundle as a service and resolve the cached image path.

$avalancheService = $this->get('imagine.cache.path.resolver');

Then, call the getBrowserPath and pass the original image webpath and the filter you want to use

$cachedImage = $avalancheService->getBrowserPath($object->getWebPath(), 'my_thumb');

And also use ImagineBundle as a service and create the cache image from controller.

$cacheManager = $this->get('imagine.cache.manager');
$cachedPath = $cacheManager->cacheImage($this->getRequest()->getBaseUrl(), '/images/picture1.jpg', 'my_filter');


Image manipulation using Imagine and Twig Filters







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