This thumbnail helper is based on the one published by Studio Canaria. Additional features are multiple size caching and an extra method which is a truly drop-in replacement for $html->image().
Usage:
<?php
echo $thumbnail->image('picture.jpg', array(
'alt' => 'test thumbnail',
'width' => '100',
'height' => '75'
)
);
// result:
// <img src="/img/thumbs/100x75/picture.jpg"
// alt="test thumbnail" height="75" width="100">
?>
Installation:
- Download thumbnail.txt
- Rename it to thumbnail.php and place it in /app/views/helpers/
- download phpThumb()
- Extract the phpThumb archive in a directory named /app/vendors/phpthumb/
- Add ‘Thumbnail’ to the ‘helpers’ array your controller
- Create a directory named ‘thumbs’ in /app/webroot/img/. Make sure it’s writable for the webserver.
That’s it!
In the above example, the thumb helper will first check if there is a file named /app/webroot/img/thumbs/100×75/picture.jpg. If it isn’t there yet, it will instantiate phpThumb and create the thumbnail.
For more advanced usage, there’s also the render() method. It will give you the flexibility to use images located outside /app/webroot/img and also make use of most of the phpThumb options.
Advanced example:
<?php $thumb = $thumbnail->render( $data['Picture']['path'], array( 'w' => 320, 'h' => 200, 'ra' => 10 ), '5271a9e66c99c84c092d7fd81cebcd57' ); echo $html->image($thumb); ?>
This will generate a picture named /app/webroot/img/thumbs/320×200/5271a9e66c99c84c092d7fd81cebcd57.jpg, which is a 10 degrees rotated thumbnail of the original image specified with $data['Picture']['path'].
