Open Source PHP Blog

[annyphp]

Free and open source PHP Blog Projects, which allow you to setup your own weblog on the Web by providing an interface to manage your posts.
The most popular Blog project is workpress.
Which PHP blog project is more Popular?
Recommended:
B2evolution is free and powerful php blog tool you can install on your own website, which allows you to run your own blogs, newsfeeds or even photo streams. B2evolution runs on virtually any webserver featuring PHP + MySQL and is available in several languages.
Serendipity is a PHP-powered weblog application which gives the user an easy way to maintain an online diary, weblog or even a complete homepage. While the default package is designed for the casual blogger, Serendipity offers a flexible, expandable and easy-to-use framework with the power for professional applications.
Nucleus is an OpenSource PHP Blog project,which allows you to easily maintain your own weblog(s) on your own server. It offers a system that is easy to install, but still offers maximum flexibility.With Nucleus, you can set up one or more weblogs.