GetImageSize() problem.

[Anon]

Hello I have this line of code that gets executed when uploading an image. The problem is that Ive tried both with jpg´s and gif´s and it send me to the include were it says that the image is not a jpg or gif. If anybody has expierance with this or know if somehting wrong with my code plz say. =)

elseif ($img_info[2] !== 1 or $img_info[2] !== 2) { include("html/register_error_img_format.html"); }

[Anon]

Okay, if I skip the direct code-errors in this one, just think about it;

$img_info[2] contains '1' (integer, so should really not be quoted). So,

if 1 is not equal to 1 OR 1 is not equal to 2 then give an error.

Wich basically results in that ANY given number will give an error;

if 2 is not equal to 1 OR 2 is not equal to 2 -> error

if 100 is not equal to 1 OR 100 is not equal to 2 -> error

.. and so forth.

Lets do a minor change (using != instead of 'not equal to');

if 1 != 1 AND 1 != 2 -> no error
if 2 != 1 AND 2 != 2 -> no error
if 100 != 1 AND 100 != 2 -> error
if 32 != 1 AND 32 != 2 -> error

A logical 'AND' is expressed as '&&' (without quotes) in PHP. So;

if (1 != 1 && 1 != 2) { error(); } else { noerror(); }

Now, use your own head. Hope it helped ;p