A quick question about GD lib

Cheded

Is it possible to extract a variable from an image? If it is.... how?

Thanks alot

LordShryku

Depends what you want to extract. What are you trying to do?

Cheded

Thanks for replying. I just need to extract the variable, basicly a number from 1-5. The number is stored in the GD image and I need to extract it. Bring it out of the number so I can use it.

eg.

$number = $GD-number-that-has-been-extracted-from-image;

then i can use the number...

Got any ideas?

Weedpacket

Just repeating the question doesn't really answer it. What do you mean by "storing a number in an image"? I can think of several possibilities.

Cheded

in the code for making the image, i have a random number done so it shows up in the image, but i want to know how to get that variable to be carryed over into the page the image is showed on. any ideas now?

onion2k

Put it in the session.

Cheded

sessions are not working. its not keeping the number in it. as in it wont pass it between the pages

onion2k

Are you considering the fact that when you show an image on a page the code for the page is always generated first. That is then sent to the user, and their browser requests the image. So the image is not generated until the user already has the HTML bit..

Therefore you'll need to generate the random number in the script that builds the HTML, put it in the session, and then use the number in the session in your image generation script.

But you may already be considering that. How about showing us some code so we can figure out whats going awry?