I have sucessfully install php version 4.3.2 and apache 1.3 and have run phpinfo() to check that GD library is supported in my installation with GD Version : bundled (2.0.12 compatible).
    I have also downloaded Jpgraph 1.13 and made the following changes in jpgraph.php:
DEFINE ("USE_CACHE",true); DEFINE("READ_CACHE", true) but when i try to run a pie chart sample the following error occurs.

Warning: main(../jpgraph.php): failed to open stream: No such file or directory in c:\inetpub\wwwroot\project\samplepie.php on line 3

Warning: main(): Failed opening '../jpgraph.php' for inclusion (include_path='.;c:\php4\pear') in c:\inetpub\wwwroot\project\samplepie.php on line 3

Warning: main(../jpgraph_pie.php): failed to open stream: No such file or directory in c:\inetpub\wwwroot\project\samplepie.php on line 4

Warning: main(): Failed opening '../jpgraph_pie.php' for inclusion (include_path='.;c:\php4\pear') in c:\inetpub\wwwroot\project\samplepie.php on line 4

Fatal error: Cannot instantiate non-existent class: piegraph in c:\inetpub\wwwroot\project\samplepie.php on line 8

        How can i make sure PHP/Apache have write privileges to cache directory if i plan on using the cache feature.
        Is there any configuration or changes that i have to do order to use jpgraph. Please help!

As far as I can see the error messages that you are presenting don't have anything to do with write permissions. These relate to the path for included files. The program is asking for these files which are required for execution but cannot find them. the last error 'Failed to instantiate non-existent class.. blah blah' probably relates to the include path failure, one of those files probably includes the class.

Have a further look at the jpgraph documentation and be sure that you have set any absolute or relative paths accordingly. Having never downloaded or looked at the source code for that program I would be unable to tell you where to find it.

A permissions error would say something to this effect; access denied, unable to create file, or write failed, or something along those lines.

As far as setting write permissions, what OS are you using.. Windows it appears, but which version?

: )
Rich

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Smiling Souls
http://www.smilingsouls.net
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Now that i've made a few changes, i got a different problem.Please advice if i've done anything wrong or left out anything.
1. downloaded and unzipped JPGraph to C:\Program Files\JpGraph
2. Open jpgraph.php and make the following changes:
i. DEFINE("CACHE_DIR", "C:/Document and Settings/hosefo/Local Settings/Temporary Internet Files/");
ii.DEFINE ("TTF_DIR", "C:/Windows/Fonts/);
iii DEFINE ('USE_TRUECOLOR', true);
iv. DEFINE ("USE_LIBRARY_GD2", true);
v. DEFINE ("USE_CACHE", true);
3. Open php.ini and make the following changes:
i. include_path(".;C:\Program Files\JPGraph\jpgrap_1.13\scr")

However i get error when i try to open the php file.
JPGraph Error : No path specified for CACHE_DIR. Please specify a path for that DEFINE IN jpgraph.php

I have already specify a path CACHE_DIR as above but why did i still get that error?
I'm using PHP4.3.2, Apache 1.3, JpGraph 1.13 under windows xp.

Looks good to me. The error you're getting is ONLY displayed when CACHE_DIR is not defined, you're on windows, and $_ENV['temp'] doesn't exist. Double check that your cache dir is valid and you don't have any typos in that line. For example, "Document and Settings" should really be "Documents and Settings" (notice Documents is plural). Still, the error you get is because the path isn't defined, not because the directory is invalid.

If you're still having trouble, feel free to paste the relevant lines from your jpgraph.php here and we'll hunt for problems and typos.


I just unzipped jpgraph, added the jpgraph\src dir to my PHP include_path, defined CACHE_DIR in jpgraph.php, and created this simple test script:

<?php

require_once('jpgraph.php');
$graph = new Graph(300, 200,"auto");

?>

I didn't actually generate a graph, but since the script didn't die with any errors, I assume that everything is working fine to begin with.


Take care,

Nik
http://www.bigaction.org/

Thanks! i can now use jpgraph. Actually, i forgot to uncomment the line to define cache.

By the way, do you know any sites that teach how to use jpgraph with mysql? Because the documentation that come with jpgraph doesn't give tutorial on that.

What do you mean use jpgraph with MySQL? Typically, if you store data in a database, then you'll need to extract it and manipulate that data into the structure that jpgraph expects. That's integration, and it accounts for a significant chunk of application development, especially when your application uses 3rd party libraries.


Take care,

Nik
http://www.bigaction.org/