Re: [chiPHPug-discuss] automaticly create a thumbnail

[Peter H. <ph...@ma...>]

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On Mon, Jan 29, 2007 at 12:38:15PM -0600, Melanie McClusky wrote:
> I create a custom "photo gallery" .  Currently my client upload a thumbnail
> and the regular size image.  Now my client only wants to upload a regular
> size image and have the "system" automaticly create a thumbnail.  

Other folks have given very good suggestions to produce resized photos,
but I wanted to chime in to mention there's a quick-and-dirty hack: set
the height and width attributes of the image to scale the iamge down.
They won't load any faster than full size and it'll be tempting to put a
lot of them on a page, making for a very slow page. But it's handy in a
pinch.

Here's a function to resize images -- you pass in the current width and
height and a new maximum width and maximum height, and it'll return an
array with the a new width and height that preserve the image's aspect
ratio.

function get_scaled_dimensions($width, $height, $max_width, $max_height) {
    if (width > height)
        $scale = $max_width / $width;
    else
        $scale = $max_height / $height;
    return array(floor($width * $scale), floor($height * $scale));
}


- --
Peter Harkins  -  http://push.cx  -  http://nearbygamers.com


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