image dimensions problem

[knowj]

I currently use this image dimension calculator within my image class

if (($width >= $maxwidth) and ($width > $height))
	{
		$newwidth = $maxwidth;
		$newheight = $height * $maxwidth / $width;
	}
else if (($height > $maxheight) and ($height > $width))
	{
		$newheight = $maxheight;
		$newwidth = $width * $maxheight / $height;
	}
else
	{
		$newwidth = $width;
		$newheight = $height;
	}

The problem is when an image is greater in height then width and over the maximum height it resizes the image to fit the aspect ratio of the maxheight.

This proves to be a problem when the aspect ratio causes the image to be higher than the maxwidth causing images on the site to expand out of their container.

How would I go about ensuring the image fits within a container size of x and y (maxwidth and maxheight)

thanks in advance

[bretticus]

I wrote a function some time ago to ensure a height or a width constraint to lessen disproportion. This means: all the same width but different heights, or the inverse (which satisfies me.)

However, as I was reading your post, I was thinking that you should attempt to crop the picture to constrain an exact ratio. I googled "php crop image" and this function was in the first result. Looks promising. You'll have to tell me if it works for you.

[knowj]

I think im going to have to choose whether width or height is priority because the whole image needs to be kept.

I will just need to update my class to allow for the width/height to be prioritized when you pass an image through to be resized. ty for the input though.