Problem displaying Graph

[levelwave]

I'm trying to in the same script - create a graph using jpgraph as a .png that gets saved to the harddrive. Then display the image to the browser using the html img tag. The problem is that the first time I run the script it displays fine. But when I use the browser back button to change what I'm graphing, when it returns to graph the img tag loads the old graph even though the file that was just saved to disk was the correct new version of the chart. I even tried delete the file before creating it but no luck...Any ideas?

<?

// call graphing function
// save to disk
<img src=graph.png>

?>

[Bloodwine]

sounds like your images are getting cached by the browser.

a cheap hack/workaround is do something like:

<img src="whatever.png?<?php echo time(); ?>" />

to my knowledge that doesn't confuse any browsers

the only downside (and this is just my personal feeling) is that it creates a new cache entry in your temporary internet files every time you view the image (the timestamp at the end of the src="" attribute pretty much guarantees that it is always unique ... even if the image itself hasn't changed)

[levelwave]

Still getting the same problem. Weird...

~john