Determine Image Size

[DevonWright]

Is there a way that I'd be able to determine if an image is greater than a certain size? I haven't run into anything like this before.

What I want to do is to display a person's avatar, however, if it's bigger than a certain size I want to size it down [I was thinking about just hard coding it to 100x100 but I figured if someone's avatar isn't square dimensions then it wouldn't look good].

Is there a way to determine the width and height of an image? Or am I hooped?

[DevonWright]

(let's do some searching before asking a question next time Devon shall we?)

getimagesize();

<?php
list($width, $height, $type, $attr) = getimagesize("img/flag.jpg");
echo "<img src=\"img/flag.jpg\" $attr alt=\"getimagesize() example\" />";
?>

Is this a good example of what I'd want?

[DevonWright]

and then

imagesx();

imagesy(); 

Erm, I guess sorry to have bothered you, if you have a better way feel free to post (still pretty new with the PHP game)

[reminder]

$max_img_size_x = '200';
$max_img_size_y = '200';

list($width, $height, $type, $attr) = getimagesize($your_img_path);

if($width > $max_img_size_x && $height > $max_img_size_y) {
echo "The picture is too big";
} else {
echo "<img src='blah.png'>";
}