mirror of
https://github.com/php/php-src.git
synced 2024-12-15 12:54:57 +08:00
113 lines
4.2 KiB
Plaintext
113 lines
4.2 KiB
Plaintext
Using PHP 5 with the Zeus Web Server
|
|
-----------------------------------
|
|
|
|
Zeus fully supports running PHP in combination with our
|
|
webserver. There are three different interfaces that can be used to
|
|
enable PHP:
|
|
|
|
* CGI
|
|
* ISAPI
|
|
* FastCGI
|
|
|
|
Of the three, we recommend using FastCGI, which has been tested and
|
|
benchmarked as providing the best performance and reliability.
|
|
|
|
Full details of how to install PHP are available from our
|
|
website, at:
|
|
|
|
http://support.zeus.com/products/php.html
|
|
|
|
If you have any problems, please check the support site for more
|
|
up-to-date information and advice.
|
|
|
|
|
|
Quick guide to installing CGI/FastCGI with Zeus
|
|
-----------------------------------------------
|
|
|
|
Step 1 - Compile PHP as FastCGI.
|
|
|
|
Compile as follows:
|
|
./configure --enable-fastcgi
|
|
make
|
|
|
|
Note that PHP has many options to the configure script -
|
|
e.g. --with-mysql. You will probably want to select your usual options
|
|
before compiling; the above is just a bare minimum, for illustration.
|
|
|
|
After compilation finishes, you will be left with an executable
|
|
program called 'php'. Copy this into your document root, under a
|
|
dedicated FastCGI directory (e.g. $DOCROOT/fcgi-bin/php)
|
|
|
|
|
|
Step 2 - configure Zeus
|
|
|
|
Four stages:
|
|
- enable FastCGI
|
|
- configure FastCGI
|
|
- setup alias for FastCGI
|
|
- setup alias for PHP
|
|
|
|
1) Using the admin server, go to the 'module configuration' page for
|
|
your virtual server, and ensure that 'fastcgi' is enabled (select the
|
|
tickbox to the left).
|
|
|
|
2) While we can run FastCGI's locally, there are known problems with
|
|
some OS's (specifically, the communication between web server and
|
|
FastCGI happens over a unix domain socket, and some OS's have trouble
|
|
sustaining high connection rates over these sockets). So instead, we
|
|
are going to set up the PHP FastCGI to run 'remotely' over localhost
|
|
(this uses TCP sockets, which do not suffer this problem). Go to the
|
|
'fastcgi configuration' page, and under 'add remote fastcgi':
|
|
Add Remote FastCGI
|
|
Docroot path /fcgi-bin/php
|
|
Remote machine localhost:8002
|
|
The first entry is where you saved PHP, above.
|
|
The second entry is localhost:<any unused port>
|
|
We will start the FastCGI listening on this port shortly.
|
|
Click 'update' to commit these changes.
|
|
|
|
3) Go to the path mapping module and add an alias for FastCGI:
|
|
Add Alias
|
|
Docroot path /fcgi-bin
|
|
Filesystem directory /path/to/docroot/fcgi-bin
|
|
Alias type fastcgi
|
|
Click 'update' to commit these changes
|
|
|
|
4) Also on the path mapping module, add a handler for PHP:
|
|
Add handler
|
|
File extension php
|
|
Handler /fcgi-bin/php
|
|
Click 'update' to commit these changes
|
|
|
|
Finally restart your virtual server for these changes to take effect.
|
|
|
|
|
|
Step 3 - start PHP as a FastCGI runner
|
|
|
|
When you start PHP, it will pre-fork a given number of child processes
|
|
to handle incoming PHP requests. Each process will handle a given
|
|
number of requests before exiting (and being replaced by a newly
|
|
forked process). You can control these two parameters by setting the
|
|
following environment variables BEFORE starting the FastCGI runner:
|
|
|
|
PHP_FCGI_CHILDREN - the number of child processes to pre-fork. This
|
|
variable MUST be set, if not then the PHP will not run as a FastCGI.
|
|
We recommend a value of 8 for a fairly busy site. If you have many,
|
|
long-running PHP scripts, then you may need to increase this further.
|
|
|
|
PHP_FCGI_MAX_REQUESTS - the number of requests each PHP child process
|
|
handles before exiting. If not set, defaults to 500.
|
|
|
|
To start the FastCGI runner, execute '$ZEUSHOME/web/bin/fcgirunner
|
|
8002 $DOCROOT/fcgi-bin/php'. Substitute the appropriate values for
|
|
$ZEUSHOME and $DOCROOT; also substitute for 8002 the port you chose,
|
|
above.
|
|
|
|
To stop the runner (e.g. to experiment with the above environment
|
|
variables) you will need to manually stop and running PHP
|
|
processes. (Use 'ps' and 'kill'). As it is PHP which is forking lots
|
|
of children and not the runner, Zeus unfortunately cannot keep track
|
|
of what processes are running, sorry. A typical command line may look
|
|
like 'ps -efl | grep $DOCROOT/fcgi-bin/php | grep -v grep | awk
|
|
'{print $4}' | xargs kill'
|