To refresh this document, perhaps it would be worth mentioning more modern methods to serve php content under apache httpd.Specifically, the preferred method is now fastcgi, using either of those recipes:(mod_fastcgi, httpd 2.2)http://wiki.apache.org/httpd/php-fastcgi(mod_fcgid, httpd 2.2)http://wiki.apache.org/httpd/php-fcgid(mod_proxy_fcgi, httpd 2.4)http://wiki.apache.org/httpd/PHP-FPMWhile the legacy mod_php approach is still applicable for some older installations, the fastcgi method is much faster, and require much less RAM to operate, based on similar traffic patterns.Thank you!

Compiling PHP on Ubuntu boxes.If you would like to compile PHP from source as opposed to relying on package maintainers, here's a list of packages, and commands you can runSTEP 1:sudo apt-get install autoconf build-essential curl libtool \  libssl-dev libcurl4-openssl-dev libxml2-dev libreadline7 \  libreadline-dev libzip-dev libzip4 nginx openssl \  pkg-config zlib1g-devSo you don't overwrite any existing PHP installs on your system, install PHP in your home directory. Create a directory for the PHP binaries to live    mkdir -p ~/bin/php7-latest/STEP 2:# download the latest PHP tarball, decompress it, then cd to the new directory.STEP 3:Configure PHP. Remove any options you don't need (like MySQL or Postgres (--with-pdo-pgsql))./configure --prefix=$HOME/bin/php-latest \    --enable-mysqlnd \    --with-pdo-mysql \    --with-pdo-mysql=mysqlnd \    --with-pdo-pgsql=/usr/bin/pg_config \    --enable-bcmath \    --enable-fpm \    --with-fpm-user=www-data \    --with-fpm-group=www-data \    --enable-mbstring \    --enable-phpdbg \    --enable-shmop \    --enable-sockets \    --enable-sysvmsg \    --enable-sysvsem \    --enable-sysvshm \    --enable-zip \    --with-libzip=/usr/lib/x86_64-linux-gnu \    --with-zlib \    --with-curl \    --with-pear \    --with-openssl \    --enable-pcntl \    --with-readlineSTEP 4:compile the binaries by typing: makeIf no errors, install by typing: make installSTEP 5:Copy the PHP.ini file to the install directory    cp php.ini-development ~/bin/php-latest/lib/ STEP 6:cd ~/bin/php-latest/etc; mv php-fpm.conf.default php-fpm.confmv php-fpm.d/www.conf.default php-fpm.d/www.confSTEP 7:create symbolic links for your for your binary files   cd ~/bin   ln -s php-latest/bin/php php   ln -s php-latest/bin/php-cgi php-cgi   ln -s php-latest/bin/php-config php-config   ln -s php-latest/bin/phpize phpize   ln -s php-latest/bin/phar.phar phar   ln -s php-latest/bin/pear pear   ln -s php-latest/bin/phpdbg phpdbg   ln -s php-latest/sbin/php-fpm php-fpmSTEP 8: link your local PHP to the php command. You will need to logout then log back in for php to switch to the local version instead of the installed version# add this to .bashrcif [ -d "$HOME/bin" ] ; then  PATH="$HOME/bin:$PATH"fiSTEP 9: Start PHP-FPM    sudo ~/bin/php7/sbin/php-fpm