Update Yum repos

For 32 bit CentOS-

wget http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-5.rpm

For 64 bit CentOS-

wget http://dl.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-5.rpm

rpm -Uvh remi-release-5*.rpm epel-release-5*.rpm

Now it’s time to update our PHP to the latest one

yum –enablerepo=remi update php php-*

/etc/init.d/httpd restart

And that’s it!

You can check your installed PHP version executing:

php -v