I have installed php by executing following command
yum install php
It install php 5.3.3 in my server.Now i want to install php 5.4.
Please help.Thanks in advance.
yum installs approved versions of packages. The approved version depends on a few things, such as your distribution and whether the package itself has been tested and deemed as working. This testing can sometimes lag well behind the development of the packages. Chances are that the version that you have installed is the latest approved version.
Building PHP isn't manually terribly difficult, so that's probably your best option. Uninstall the version you have from yum and checkout the official instructions on how to clone and build yourself.
Either that or look around for other packages in yum that give you a newer version (see @barbarity's answer).
Saw it on https://webtatic.com/packages/php54/
To install, first you must add the Webtatic EL yum repository information corresponding to your CentOS/RHEL version to yum:
CentOS/RHEL 7.x:
rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
CentOS/RHEL 6.x:
rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
CentOS/RHEL 5.x:
rpm -Uvh http://mirror.webtatic.com/yum/el5/latest.rpm
Now you can install php by doing:
yum install php54w
Check available packages
rpm -q php
Installing the webtatic release RPM(For CentOs 6.x)
sudo rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm
Check for available packages in other repo
yum info php55w
Trying to update using yum update
sudo yum update php
Updating using yum remove then yum install
yum info php-common
Removing php-common
sudo yum remove php-common
Installing php55w and php55w-common
sudo yum install php55w php55w-common
Now restart your apache server then check the php version.