nerdnotes.org

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'].

This entry was posted on Tuesday, April 7th, 2009 at 6:44 pm and is filed under cakephp, nerdnotes. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.