algorithm for uploading images so they all have exact same width and height?

[zander1983]

Hi

Im working on a market place style website. the framework im using is called elgg. it uses an algoritm to find the right approximate width and height of an image thats being uploaded. but on my site, all heights and widths must be the same. this is difficult because some pictures have much greater width than height and some have much greater height. so whats the best algoritm to use to make an accurate thumbnail of all images uploaded?

Thanks

[joel24]

//have a static width and find the percentage of that in terms of the original width, then times it by the original height
$width = $imageWidth;
$height = $imageHeight;

$newWidth = 300;

$newHeight = $newWidth / $width * $height;

[zander1983]

but this will give diffrerent new height for each image. i need it like etsy.com where every image has same width and height...

[joel24]

you'll need to crop the image using imagecopy()... scroll down on that page and the example show code which will crop