If anyones still looking to install php 5.4 and wants to create a stand-alone install of php 5.4 from source, this is how do do it:

Create a folder named php-5.4 in your local home directory like ~/programs/php-5.4. Then execute below commands from it through CLI.

 sudo apt-get install gcc libmysqlclient-dev libxml2-dev wget --trust-server-names http://us2.php.net/get/php-5.4.15.tar.bz2/from/us1.php.net/mirror tar xjf php-5.4.15.tar.bz2 cd php-5.4.15 ./configure --prefix=$PWD/installdir --enable-bcmath --with-mysql make install cd - 

Replace 5.4.15 with the latest old-stable version of php. Refer this Google appengine developer page for more details.

If anyone is still looking to install php 5.4 and wants to create a stand-alone install of php 5.4 from source, this is how do do it:

Create a folder named php-5.4 in your local home directory like ~/programs/php-5.4. Then execute below commands from it through CLI.

 sudo apt-get install gcc libmysqlclient-dev libxml2-dev wget --trust-server-names http://museum.php.net/php5/php-5.4.15.tar.bz2 tar xjf php-5.4.15.tar.bz2 cd php-5.4.15 ./configure --prefix=$PWD/installdir --enable-bcmath --with-mysql make install cd - 

Replace 5.4.15 with the latest old-stable version of php. Refer this Google appengine developer page for more details.

edit

Updated the new location for php 5.4.