Create graph in php...

[Yari]

I am using a third party php function (by Afan Ottenheimer, [e-mail]
), which basically creates a graph of data that I put in.

The graph is working fine, but only when I run the script on its own, not as an include.

This doesn't help much, as I want to include the graph as part of a PHP page... but it gives me all kind of errors when I run it from inside another page. The files are in the same directory.

The errors I get are:

"Warning: Cannot add header information - headers already sent by ...etc"

Which indicates to me that the file which includes the graph needs to be called before anything else....

So I either need a way to create the graph first, then include it as an image, or to create the image as the page is being loaded.

Any ideas?

Thanks

[nileshn]

Hi,

The basic problem is that the graph header must be sending a Content Header. Since your script already sends the html, this gives rise to the error.

Do the following.

If the graph script is called graph.php then you must be calling it currently thru include as

include "graph.php";

change this to

echo "<img src=\"graph.php\">\n";
set other img parameters accordingly. This should work.

Regards

Nilesh

[DeltaRho2K]

if the whole image tag thing doesn't work, you could also look into the graph.php file to see what header info it is trying to send... It may not be needed, and you can remove the header stuff it is trying to send or put it's header info into your original file...

[Yari]

yay! That worked perfectly... thanks!