Hai i have installed php in the cent os 5.4. the one which is installed is 5.1.6 now what i want to do is upgrade it to latest one 5.3.2, as i am new to linux environment it is quite hard for me to configure that, can any one guide me with this also one more thing is that i need to install zend framework in the same environment, any help would be greatly appreciate.. regards Chaitanya