Cache dynamic image?

[dose]

Im using curl to pull info from another server and put it on a image. How can i cache the final output image on my server for a hour

[rhodesa]

can you post some more info?

 

-you need a unique way to refer to the image. If the URL you are getting the image from is unique, just cache the file in a local folder with the filename:

$file = md5($url).'.jpg';

 

-to cache it for a specific time, you can check how old it is with:

http://php.net/filemtime