Uploading files through submit form (File type restriction)

[Undrium]

I'm using a simple uploading script that uses a submit form and a upload.php file which puts the file in a directory. My problem is that I have no idea how to restrict the files to being just jpgs and gifs.

I've tried to search through the entire forum and most of them suggest using a MIME function which my server does not have. Is there anyway to grab the filename and check if it's the valid file type before it uploads to the directory?

I'm using the function move_uploaded_file file, is it better using just copy?

Thanks in advance,

Kristofer.

Ps.
Sorry about my English, not my native language really.
Ds.

[bodzan]

...[man]getimagesize[/man] to check for values of a type because this function returns, as manual states:

Returns an array with 4 elements. Index 0 contains the width of the image in pixels. Index 1 contains the height. Index 2 is a flag indicating the type of the image: 1 = GIF, 2 = JPG, 3 = PNG, 4 = SWF, 5 = PSD, 6 = BMP, 7 = TIFF(intel byte order), 8 = TIFF(motorola byte order), 9 = JPC, 10 = JP2, 11 = JPX, 12 = JB2, 13 = SWC, 14 = IFF, 15 = WBMP, 16 = XBM. These values correspond to the IMAGETYPE constants that were added in PHP 4.3.0. Index 3 is a text string with the correct height="yyy" width="xxx" string that can be used directly in an IMG tag.

Basically if you want only to allow jpg's and gif's use soemthing like:

$imgInfo = getimagesize($uploadedImage);
if($imgInfo[2]==1 or $imgInfo[2]==2){
     //do whatever you want
}
else{
     echo "Only jpg's and gif's are allowed!";
}

[Undrium]

Thanks alot, Bodzan. I'll check this out soon. 🙂