Instalace php 5.4 na debian 6

Adding dotdeb repositories

Open

and add these lines to the end of the file to add dotdeb repos:

Go to shell and type:

Setting up MySQL 5.5

Database back up, removing old MySQL server

Before we start, back up your databases via mysqldump:

If you want to compress the sql file (which you probably do), type this instead:

If you already have previous version of MySQL server installed, you should first remove it to avoid possible conflicts (conf, files, directories, etc.):

Installing MySQL 5.5

Let’s get down to business:

apt-get will probably offer you the installation of dependent packages, when prompted Do you want to continue [Y/n]? – type “Y” and Install these packages without verification [y/N]? – type “y”. The installation will now begin.

During the installation, you will be prompted to enter the root password. You are not required to do that (leave the field empty), but it is strongly advisable to do so. You can also do this later:

Try to connect to your new MySQL server:

Setting up PHP 5.4

Again, let’s begin with backing up at least your php.ini (copy it someplace else, preferably not to /dev/null). Where is your php.ini located?

Remove previous version of PHP, if any:

Installation

In this setup, we only added core php5.4 modules + MySQL module. If you need more modules, attach their names to the previous shell command (separated by spaces), for example:

or add them anytime later:

Don’t add modules, which you don’t really need now. Gazillion loaded modules will decrease overall PHP performance and will unnecessarily consume system resources. You can always add a new module if you really need it, as described above.

The setup should automatically restart the webserver, if it doesn’t, run:

That’s it, hope this small tutorial helped you. I will write a few words on configuration when time allows.