root@sandbox:~/php-5.2.5# make install
Installing PHP SAPI module:       cgi
Installing PHP CGI binary: /usr/local/bin/
Installing PHP CLI binary:        /usr/local/bin/
Installing PHP CLI man page:      /usr/local/man/man1/
Installing build environment:     /usr/local/lib/php/build/
Installing header files:          /usr/local/include/php/
Installing helper programs:       /usr/local/bin/
  program: phpize
  program: php-config
Installing man pages:             /usr/local/man/man1/
  page: phpize.1
  page: php-config.1
Installing PEAR environment:      /usr/local/lib/php/
[PEAR] Console_Getopt - already installed: 1.2.3
[PEAR] Archive_Tar    - already installed: 1.3.2
[PEAR] Structures_Graph- already installed: 1.0.2
[PEAR] PEAR           - already installed: 1.6.1
Wrote PEAR system config file at: /usr/local/etc/pear.conf
You may want to add: /usr/local/lib/php to your php.ini include_path
Installing PDO headers:          /usr/local/include/php/ext/pdo/
root@sandbox:~/php-5.2.5# /etc/init.d/apache2 restart
 * Restarting web server apache2                                                                                                                                                                           apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
                                                                                                                                                                                                    [ OK ]
root@sandbox:~/php-5.2.5# php -v