Code to grab Image Dimensions

[FCC]

Hi all,

Is there any code from any language which grabs the image dimensions of a .gif, .jpeg or any type of image file?

Thanks.

[Dr John]

grab from where?
an image on a web page
the size the image as displayed on the web page (as opposed to its true size)
the size of the image stored on your hard disk?

all image manipulation software will dispaly this for an image on your PC, and right clicking in a browser will display the current on-screen size. As will viewing the actual html.

[FCC]

An image from a webpage I guess.

Basically, I have a CMS which allows people to change images. And before they change the old picture I want to display it allow with the dimensions of it to give them an ideal of what an ideal size would be.

[RaS!]

Except the classic ASP, all languages have built-in functions (or by using right extensions) to retrieve the dimension of an image, even with javascript you can do it.

[Buddy Bradley]

In PHP you can use getimagesize().

[KDesigns]

If using PHP, as Buddy said above...

$image = getimagesize('image.jpg');
$width = $image[0];
$height = $image[1];
$type_of_image = $image[2];
$text_string_for_tag = $image[3]; 
//text string will have the correct height="yyy" and width="xxx" string that can be used directly in an <img/> tag.