Experimental Physics and
Industrial Control System

Noboru Yamamoto <[email protected]> · Wed, 30 Jun 2004 00:38:24 +0900

Hi Renata,
Renata Krempaska wrote:

Hi Noboru,
we developed in SLS a php module which allows to talk to an EPICS
channel from a php page. You just need to load this module in your php
code and call ca functions (caget, caput or camonitor). The usage is
very simle and performace very good.

You can download the module and get the documentation on:

http://www.sls.psi.ch/controls/help/howto/php_epics.html
Hope this helps. Best regards,
Renata and Alian

Thank you very much for the information. CA access from PHP is quite
intersting. We will look at your code.
We are not only live data on the EPICS database but also archived
(history) data of channels. That is the reason why we use XML-RPC data
server come with latest Channel Archiver tool.
Our users like a web interface provided by CGIExport in old Channel
Archiver to check the archived data. Unfortunately, latest Archiver does
not support CGIExport anymore, so we are developing the replacement of
CGIExport using Apache/PHP/gnuplot.
Thank you very much again for your help.
Regards,
Noboru

Noboru Yamamoto wrote:
Hi,
We are now developing a Web application which display a graph of Channel
Archiver
XML-RPC data server. It try to imitate CGIExport in the older version of
Channel Archiver.
Mr. Susumu Yoshida wrote a program using Apache+PHP+gnuplot and we
started the
evaluation of program. Soon, we noticed that XML-RPC library we used in
PHP is not
as fast as that in Perl or Python.2.3.x.
After studying the Web for a while, we found that there are several
version of XML-RPC library
for PHP.
Does anyone know which version of these libraries is the fastest and
reliable
Your comments and suggestions will be greatly appreciated.
Thank you for your cooperation.
Noboru Yamamoto

KEKB control group

KEK, JAPAN

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System