├── .gitignore
├── README.md
├── composer.json
└── src
    └── ImageOptimizer
        ├── Optimizer.php
        └── Provider
            └── Optimization
                ├── AbstractOptimizationProvider.php
                ├── Gifsicle.php
                ├── Mozjpeg.php
                └── Pngquant.php


/.gitignore:
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1 | .idea
2 | .DS_Store
3 | /composer.lock
4 | /vendor/
5 | 


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/README.md:
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 1 | ImageOptimizer
 2 | ===========
 3 | PHP image optimizer for png, jpeg and gif files. It uses mozjpeg, pngquant and gifsicle for the optimization process.
 4 | 
 5 | **This guide assumes you have mozjpeg, pngquant and gifsicle installed.**
 6 | 
 7 | Installation
 8 | ----------- 
 9 | You can install this library with composer or include it manually in your project.
10 | 
11 | Quick start
12 | -----------
13 | 
14 | ```php
15 |  $optimizer = new Optimizer(
16 |     array(
17 |         Optimizer::PNGQUANT_PATH => '/usr/local/bin/pngquant',
18 |         Optimizer::MOZJPEG_PATH => '/usr/local/bin/cjpeg',
19 |         Optimizer::GIFSICLE_PATH => '/usr/local/bin/gifsicle'
20 |     )
21 | );
22 | ```
23 | 
24 | After this you can run the optimization process. If the optimization failed the method will throw an Exception, otherwise it returns TRUE.
25 | 
26 | ```php
27 | $optimizer->optimize('example.jpg', 'example-optimized.jpg'));
28 | ```
29 |   


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/composer.json:
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 1 | {
 2 |   "name": "gtuk/image-optimizer",
 3 |   "author": "Florian Lambart",
 4 |   "description": "PHP image optimizer for png, jpeg and gif files. It uses mozjpeg, pngquant and gifsicle for the optimization process",
 5 |   "type": "library",
 6 |   "keywords": [
 7 |     "image optimizer",
 8 |     "image",
 9 |     "optimizer",
10 |     "optimize",
11 |     "compress",
12 |     "compression",
13 |     "optimization",
14 |     "mozjpeg",
15 |     "pngquant",
16 |     "gifsicle",
17 |     "php"
18 |   ],
19 |   "minimum-stability": "dev",
20 |   "license": "MIT",
21 |   "require": {
22 |     "php": ">=5.4"
23 |   },
24 |   "require-dev": {
25 |     "phpunit/phpunit": "~4.8"
26 |   },
27 |   "autoload": {
28 |     "psr-0": {
29 |       "ImageOptimizer": "src"
30 |     }
31 |   }
32 | }
33 | 


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/src/ImageOptimizer/Optimizer.php:
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 1 | <?php
 2 | 
 3 | namespace ImageOptimizer;
 4 | 
 5 | use Exception;
 6 | use ImageOptimizer\Provider\Optimization\Gifsicle;
 7 | use ImageOptimizer\Provider\Optimization\Mozjpeg;
 8 | use ImageOptimizer\Provider\Optimization\Pngquant;
 9 | 
10 | /**
11 |  * Class Optimizer
12 |  *
13 |  * @package ImageOptimizer
14 |  */
15 | class Optimizer
16 | {
17 |     const PNGQUANT_PATH = 'pngquant';
18 |     const MOZJPEG_PATH  = 'mozjpeg';
19 |     const GIFSICLE_PATH = 'gifsicle';
20 | 
21 |     protected $pngquant;
22 |     protected $mozjpeg;
23 |     protected $gifsicle;
24 | 
25 |     /**
26 |      * Optimizer constructor.
27 |      *
28 |      * @param array $optimizer
29 |      *
30 |      * @throws Exception
31 |      */
32 |     public function __construct($optimizer = array())
33 |     {
34 |         if (! isset($optimizer[self::PNGQUANT_PATH]) ||
35 |             ! isset($optimizer[self::MOZJPEG_PATH]) ||
36 |             ! isset($optimizer[self::GIFSICLE_PATH])
37 |         ) {
38 |             throw new Exception('Optimizer not set');
39 |         }
40 | 
41 |         if (! file_exists($optimizer[self::PNGQUANT_PATH]) ||
42 |             ! file_exists($optimizer[self::MOZJPEG_PATH]) ||
43 |             ! file_exists($optimizer[self::GIFSICLE_PATH])
44 |         ) {
45 |             throw new Exception('Optimizer not found');
46 |         }
47 | 
48 |         $this->mozjpeg  = new Mozjpeg($optimizer[self::MOZJPEG_PATH]);
49 |         $this->pngquant = new Pngquant($optimizer[self::PNGQUANT_PATH]);
50 |         $this->gifsicle = new Gifsicle($optimizer[self::GIFSICLE_PATH]);
51 |     }
52 | 
53 |     /**
54 |      * Optimize image
55 |      *
56 |      * @param string $input
57 |      * @param string $output
58 |      *
59 |      * @return bool
60 |      *
61 |      * @throws Exception
62 |      */
63 |     public function optimize($input, $output = '')
64 |     {
65 |         switch (pathinfo($input, PATHINFO_EXTENSION)) {
66 |             case 'jpg':
67 |             case 'jpeg':
68 |                 $content = $this->mozjpeg->optimize($input);
69 |                 break;
70 |             case 'png':
71 |                 $content = $this->pngquant->optimize($input);
72 |                 break;
73 |             case 'gif':
74 |                 $content = $this->gifsicle->optimize($input);
75 |                 break;
76 |             default:
77 |                 throw new Exception('No valid file type');
78 |         }
79 | 
80 |         if (! empty($output)) {
81 |             $result = file_put_contents($output, $content);
82 |         } else {
83 |             $result = file_put_contents($input, $content);
84 |         }
85 | 
86 |         if (false === $result) {
87 |             throw new Exception('Could not write to file');
88 |         }
89 | 
90 |         return true;
91 |     }
92 | }
93 | 


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/src/ImageOptimizer/Provider/Optimization/AbstractOptimizationProvider.php:
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 1 | <?php
 2 | 
 3 | namespace ImageOptimizer\Provider\Optimization;
 4 | 
 5 | use Exception;
 6 | 
 7 | /**
 8 |  * Class AbstractOptimizationProvider
 9 |  *
10 |  * @package ImageOptimizer\Provider\Optimization
11 |  */
12 | abstract class AbstractOptimizationProvider
13 | {
14 |     protected $binaryPath;
15 | 
16 |     /**
17 |      * AbstractOptimizationProvider constructor.
18 |      *
19 |      * @param string $binaryPath
20 |      */
21 |     public function __construct($binaryPath)
22 |     {
23 |         $this->binaryPath = $binaryPath;
24 |     }
25 | 
26 |     /**
27 |      * Optimize image
28 |      *
29 |      * @param mixed $image
30 |      *
31 |      * @return string
32 |      *
33 |      * @throws Exception
34 |      */
35 |     abstract public function optimize($image);
36 | }
37 | 


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/src/ImageOptimizer/Provider/Optimization/Gifsicle.php:
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 1 | <?php
 2 | 
 3 | namespace ImageOptimizer\Provider\Optimization;
 4 | 
 5 | use Exception;
 6 | 
 7 | /**
 8 |  * Class Gifsicle
 9 |  *
10 |  * @package ImageOptimizer\Provider\Optimization
11 |  */
12 | class Gifsicle extends AbstractOptimizationProvider
13 | {
14 |     /**
15 |      * Gifsicle constructor.
16 |      *
17 |      * @param string $binaryPath
18 |      */
19 |     public function __construct($binaryPath)
20 |     {
21 |         parent::__construct($binaryPath);
22 |     }
23 | 
24 |     /**
25 |      * Optimize gif
26 |      *
27 |      * @param mixed $image
28 |      *
29 |      * @return string
30 |      *
31 |      * @throws Exception
32 |      */
33 |     public function optimize($image)
34 |     {
35 |         $content = shell_exec($this->binaryPath.' -O2 '.escapeshellarg($image));
36 | 
37 |         if (!$content) {
38 |             throw new Exception('There was an error during the optimization');
39 |         }
40 | 
41 |         return $content;
42 |     }
43 | }
44 | 


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/src/ImageOptimizer/Provider/Optimization/Mozjpeg.php:
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 1 | <?php
 2 | 
 3 | namespace ImageOptimizer\Provider\Optimization;
 4 | 
 5 | use Exception;
 6 | 
 7 | /**
 8 |  * Class Mozjpeg
 9 |  *
10 |  * @package ImageOptimizer\Provider\Optimization
11 |  */
12 | class Mozjpeg extends AbstractOptimizationProvider
13 | {
14 |     /**
15 |      * Mozjpeg constructor.
16 |      *
17 |      * @param string $binaryPath
18 |      */
19 |     public function __construct($binaryPath)
20 |     {
21 |         parent::__construct($binaryPath);
22 |     }
23 | 
24 |     /**
25 |      * Optimize jpg
26 |      *
27 |      * @param mixed $image
28 |      *
29 |      * @return string
30 |      *
31 |      * @throws Exception
32 |      */
33 |     public function optimize($image)
34 |     {
35 |         $content = shell_exec($this->binaryPath.' -optimize '.escapeshellarg($image));
36 | 
37 |         if (!$content) {
38 |             throw new Exception('There was an error during the optimization');
39 |         }
40 | 
41 |         return $content;
42 |     }
43 | }
44 | 


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/src/ImageOptimizer/Provider/Optimization/Pngquant.php:
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 1 | <?php
 2 | 
 3 | namespace ImageOptimizer\Provider\Optimization;
 4 | 
 5 | use Exception;
 6 | 
 7 | /**
 8 |  * Class Pngquant
 9 |  *
10 |  * @package ImageOptimizer\Provider\Optimization
11 |  */
12 | class Pngquant extends AbstractOptimizationProvider
13 | {
14 |     /**
15 |      * Pngquant constructor.
16 |      *
17 |      * @param string $binaryPath
18 |      */
19 |     public function __construct($binaryPath)
20 |     {
21 |         parent::__construct($binaryPath);
22 |     }
23 | 
24 |     /**
25 |      * Optimize png
26 |      *
27 |      * @param mixed $image
28 |      *
29 |      * @return string
30 |      *
31 |      * @throws Exception
32 |      */
33 |     public function optimize($image)
34 |     {
35 |         $content = shell_exec($this->binaryPath.' - < '.escapeshellarg($image));
36 | 
37 |         if (!$content) {
38 |             throw new Exception('There was an error during the optimization');
39 |         }
40 | 
41 |         return $content;
42 |     }
43 | }
44 | 


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