%general-entities; ]> PHP is the PHP Hypertext Preprocessor. Primarily used in dynamic web sites, it allows for programming code to be directly embedded into the HTML markup. Download (HTTP): Download (FTP): Download size: &php-size; Estimated Disk space required: &php-buildsize; Estimated build time: &php-time; , , , , ClibPDF, , , , QDBM, , , , GD, , X ( or ), , t1lib, , , , , or , libmcrypt, mhash, and MTA You can use PHP for server-side scripting, command line scripting or client-side GUI applications. The book provides instructions for setting up PHP for server-side scripting as it is the most common form. Install PHP by running the following commands: ./configure --prefix=/usr \ --sysconfdir=/etc \ --with-apxs2 \ --with-config-file-path=/etc \ --with-zlib \ --with-bz2 \ --enable-ftp \ --with-gettext \ --with-iconv \ --with-ncurses \ --disable-libxml && make && make install && cp php.ini-recommended /etc/php.ini PHP has many more configure options that will enable support for certain things. You can use ./configure --help to see a full list of the available options. Also, use of the PHP web site is highly recommended, as their online docs are very good. /etc/php.ini, /etc/pear.conf To enable PHP support in the Apache web server, a new LoadModule (this one should be handled automatically by the make install command) and AddType directives must be added to the httpd.conf file: LoadModule php5_module lib/apache/libphp5.so AddType application/x-httpd-php .php Also, it can be useful to add an entry for index.php to the DirectoryIndex directive of the httpd.conf file. The PHP package contains pear (requires ), php, php-config, phpextdist and phpize. php is a command line interface that enables you to parse and execute PHP code. pear is the PHP Extension and Application Repository (PEAR) package manager.