AJAX and PHP

[rayge99]

Im trying to figure out a way to monitor an image so when it changes it would be reloaded.

any ideas on how i might do this?

[bpat1434]

Use a call-back function to get the last modified date and time of the file you want to watch. The JS would execute an HTTP call to the PHP page which would read the last modified date and output it. JS would then compare the previous one it got. If they're differnet, refresh the image, if not, sleep until it's time to check again.

[rayge99]

Right SO if i have my php page to check the last modified date.
Then how do i do the JS to read that in and check then sleep then check again then refresh etc ?

[bpat1434]

Do you know AJAX or JS? If not, I'd say go pick up a book, because I'm not entirely sure exactly how to do it. I just know that it can be done (because of JS clocks and timers and such).

[rayge99]

Alrighty Yeah im not as familliar with JS as i am PHP. thanks