[RESOLVED] Getting image size without loading

[Zpixel]

the script should acquire image size. i want to do that without loading image from a remote url. in fact i want for example to get the size of http://www.anysite.com/image1.jpg in the least time. is it possible?

[dagon]

get image size with out the image, need magic for that one.

[Zpixel]

imagemagick you mean? or you're joking?

[Kudose]

No, he means magic ... like a magician.

It's not possible to get information about an image without requesting the image.

[NogDog]

You can, however, just request the HTTP headers and not the entire content:

<pre><?php
$ch = curl_init('http://phpbuilder.com/images/logo.gif');
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$headers = curl_exec($ch);
if($headers)
{
   preg_match('#Content-Length: *(\d+)\b#i', $headers, $matches);
   $size = (!empty($matches[1])) ? $matches[1] : false;
   preg_match('#Content-Type: *(\S+)\b#i', $headers, $matches);
   $type = (!empty($matches[1])) ? $matches[1] : false;
}
var_dump($size);
var_dump($type);
?></pre>

[Zpixel]

thanks a lot.

[dagon]

wops, i assumed width and height when he said size.

[NogDog]

dagon;10913194 wrote:

wops, i assumed width and height when he said size.

Heh! I made the other assumption and didn't think of yours. Just goes to show, the better the question is asked, the more likely you are to get a good answer. Otherwise it might just be stupid luck. 🙂