How to check for image Dimensions

Hi

Im looking for a way to check what the dimensions of an image are using PHP. I need to work out what the width and height are of an image which can be passed to PHP using a URL.

Can anyone help?

Thanks
Phil

 

I don't think that php has function that can get dimensions of remote image. One way to get dimenstions:
Download image file with php and check dimensions with GD(http://www.php.net/gd).

 

http://www.php.net/manual/en/function.getimagesize.php

 

<?php
$info = getimagesize("http://www.google.com/intl/en_ALL/images/logo.gif");
echo $info[3];
?>

Code (markup):

I'm only displaying the Array[3], but there are your other options too, I tested it with Google's Logo.

Array[0] = Width
Array[1] = Height
Array[2] = Image Type Flag
Array[3] = width="xxx" height="xxx"
Array[bits] = bits
Array[channels] = channels
Array[mime] = mime-type