Installing PHP4 and Apache on Ubuntu
If you are doing any kind of PHP development, you’ll almost always be using Apache along with it. Here’s the quick and easy way to get PHP up and running on your Ubuntu box.
First, you’ll want to add the extra repositories to Ubuntu’s sources.list file.
From a command shell, you will run the following commands:
sudo apt-get install apache2
sudo apt-get install php4
sudo apt-get install libapache2-mod-php4
sudo /etc/init.d/apache2 restart
Note that if apache is already installed you can omit the first line. Your web files will now be found in /var/www/
Note that this is nearly the same as installing PHP5, which is the latest version.

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php4 isn’t going to be supported after the end of this year, I think
Yes, that’s correct, but a ton of people still use it.
i ran all the commands in terminal on Ubuntu 7.10 and it asked for my password then it said couldn’t find package apache2 , what should i do
I installed Linux Ubuntu on 25.7.2008. A fresh copy. I completely fromatted my HD. My computer is working only in Ubuntu. I want to install PHP4 , Apache and MySQL. Can any one suggest me the steps involved in doing so? .
all you have to do, is the commands in the terminal of the page you posted on ^.
but what i did was:
sudo apt-get install apache2
sudo apt-get install php5
sudo apt-get install mysql(this is the part that always gets me messed up, look it up on google, search sudo apt-get install mysql command for ubunut)
sudo apt-get install webmin
there is another one that is like php-mysql, youll have to look that one up, it lets mysql and php communiacate
php4 seems not to be there anymore – php5 is good