Posted by Armand Brahaj on 06/26/07 20:50

james.gauth@googlemail.com wrote:
> On 26 Jun, 08:31, Christoph Burschka <christoph.bursc...@rwth-
> aachen.de> wrote:
>> Is there some way to get the dimensions of an image, given the binary
>> data of the image, without having to write it to a temporary file?
>>
>> It seems that getimagesize() will only take a filename, but since I have
>> to download the image from a remote URL with fsockopen(), I have it
>> stored as a binary string.
>>
>> I've had a cursory glance at the data, but predictably the size is not
>> stored in decimal format anywhere...
>>
>> --
>> cb
>
> If the image format is supported by your GD Library, you can use the
> following:
>
> <?php
>
> $binary_data = file_get_contents('http://www.google.co.uk/intl/en_uk/
> images/logo.gif');
>
> $im = imagecreatefromstring($binary_data);
>
> $width = imagesx($im);
> $height = imagesy($im);
>
> print "width: $width\n";
> print "height: $height\n";
>
> ?>
>

Someone correct me if I am wrong, but whenever you open an image/file to
read (even if you want to read the headers) you are storing it to some
temporary buffer/space on your machine!
Maybe the GD solution above is the best!

Armand

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