Has Anyone Had Trouble Uploading ".jpg" Images?

Volitics

I've been having difficulty getting .jpg files to upload. Sometimes the $FileType == "image/jpeg" works and sometimes it doesn't. In other words, sometimes if it is a .jpg image the second snippet below will register false.

I just changed to a new hosting. The other day the $FileType snippet said the image was of type "image/pjpeg". I don't know where it got the "p" in the "pjpeg." It was darned odd.

Stranger yet, the next day the $FileType snippet called the type "image/jpeg" - just the way it was supposed to.

Today, the whole thing is not working. It's got me stymied.

// Snippet to tell the type of file.
$FileType = $_FILES["UserFile"."$Image"]["type"];

// Snippet further down.
if ($FileType == "image/jpeg"){
$jpg = TRUE;
}else{
$jpg = FALSE;
}

The phpinfo() on the server has the settings "GIF Read Support" and "JPG Support". The server may be set so that it does not work too good with .jpg images.

I'm thinking about just having the script upload just .gif and .bmp images and forget about the .jpg images.

Is it something that I might be doing wrong or is it just that .jpg images sometimes just don't work too good?

Thanks.

Volitics

I think I may have found the problem - or maybe part of the problem.

The "image/pjpeg" that I refer to above is called "progressive jpeg". I did a search on the PHP web site. It (or actually Google) gave me a page in the German language. Google translated the page.

It says that Windows will sometimes read a "jpeg" image as "pjpeg."

So what I did was this:

$FileType = $_FILES["UserFile"."$Image"]["type"];

echo $FileType;

And sure enough the Netscape browser on my desktop outputs "image/jpeg" and the Internet Explorer ouputs "pjpeg"

What I did in the script above (first posting) is this:

if ($FileType == (("image/jpeg") OR ("image/pjpeg")) ){
$jpg = TRUE;
$FileName = eregi_replace("jpeg", "jpg", $FileName);
}else{
$jpg = FALSE;
}

It's working for now but I don't know if it's going to continue working right. Maybe it will. I hope this information helps somebody.

Anybody is welcome to additional information if they wish.

Weedpacket

You could also use [man]getimagesize[/man]. I've only ever seen that fail on PHP<4.0.6 for pics from certain digital cameras.

superwormy

This:
if ($FileType == (("image/jpeg") OR ("image/pjpeg")) ){

Is wrong, and should be this:
if ($FileType == "image/jpeg" or $FileType == "image/pjpeg"){

Further, "image/jpg" is another mime type it sometimes shows up as. JPEG2000 formats might show up as image/jp2, image/j2c, image/j2k, or image/jpc too. :-)

php4om

mail your prob in details to php4om@yahoo.co.in.
i will solve it.

Volitics

Weedpacket, superwormy, php4om;

Thanks for responding to my problem. I just changed the string to:

if ($FileType == "image/jpeg" OR $FileType == "image/pjpeg"){

It works good.

So from what you're telling me the string ought to include the other jpeg types and look something like this:

if ($FileType == "image/jpeg" or $FileType == "image/pjpeg" or $FileType == "image/jpg" or $FileType == "image/jp2" or $FileType == "image/j2c" or $FileType == "image/j2k" or $FileType == "image/jpc")

Is there any other types for .gif images that I ought to take into consideration?

Thanks.

Weedpacket

Not for .gif, but you might also want to include image/png for PNG images - and I've seen image/jfif for JPEGs occasionally. The official MIME type for all JPEGs is image/jpeg, but since so many people use their own ideas (pjpeg, jpg, jfif, and whathaveyou) I find it's more reliable to look at the file itself and see if it's a JPEG.

Volitics

Weedpacket,

Thanks for the additional info.🙂