Nginx With PHP As FastCGI Howto

Nginx supports FastCGI technology to work with many external tools and servers. PHP itself can be runned as FastCGI application and can process FastCGI requests from nginx.

So, first of all we need to install PHP with fastcgi support and run it on some local tcp port. Installation process can go different ways, but I will describe here how to compile PHP from sources because it is generic way. To get fastcgi-enabled version of PHP interpreter, you may use following commands:

Code: [Select]

# ./configure --prefix=/opt/php --enable-fastcgi
...
# make
...
# make install
...
#Code: [Select]

#!/bin/bash

## ABSOLUTE path to the PHP binary
PHPFCGI="/opt/php/bin/php"

## tcp-port to bind on
FCGIPORT="8888"

## IP to bind on
FCGIADDR="127.0.0.1"

## number of PHP children to spawn
PHP_FCGI_CHILDREN=5

## number of request before php-process will be restarted
PHP_FCGI_MAX_REQUESTS=1000

# allowed environment variables sperated by spaces
ALLOWED_ENV="ORACLE_HOME PATH USER"

## if this script is run as root switch to the following user
USERID=www-data

################## no config below this line

if test x$PHP_FCGI_CHILDREN = x; then
  PHP_FCGI_CHILDREN=5
fi

ALLOWED_ENV="$ALLOWED_ENV PHP_FCGI_CHILDREN"
ALLOWED_ENV="$ALLOWED_ENV PHP_FCGI_MAX_REQUESTS"
ALLOWED_ENV="$ALLOWED_ENV FCGI_WEB_SERVER_ADDRS"

if test x$UID = x0; then
  EX="/bin/su -m -c \"$PHPFCGI -q -b $FCGIADDR:$FCGIPORT\" $USERID"
else
  EX="$PHPFCGI -b $FCGIADDR:$FCGIPORT"
fi

echo $EX

# copy the allowed environment variables
E=

for i in $ALLOWED_ENV; do
  E="$E $i=${!i}"
done

# clean environment and set up a new one
nohup env - $E sh -c "$EX" &> /dev/null &
here):
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# pass the PHP scripts to FastCGI server listening on 127.0.0.1:8888
#
location ~ .php$ {
  fastcgi_pass   127.0.0.1:8888;
  fastcgi_index  index.php;

  fastcgi_param  SCRIPT_FILENAME  /usr/local/nginx/html$fastcgi_script_name;
  fastcgi_param  QUERY_STRING     $query_string;
  fastcgi_param  REQUEST_METHOD   $request_method;
  fastcgi_param  CONTENT_TYPE     $content_type;
  fastcgi_param  CONTENT_LENGTH   $content_length;
}
That is all! Now you can use your nginx to serve any PHP-enabled sites and its performance will be very close to Apache mod_php module, but you will get more memory to process more requests from your site visitors.

As always, if you have some questions or suggestions, you can post them in comments area.

Courtesy of Kovyrin

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