In several places, b2evolution lets you select an "Image Size" a.k.a. "Thumbnail Size" for the images you display. In the name of the sizes you will find the following: type : fit will preserve the image dimensions ratio a… more »

PHP writes all its errors into a log file which depends on your particular setup. It will typically be called error.log. It may be a good idea to ask your web host where you can check the contents of this file. Besides this, it may be easier to have PHP… more »

This feature is very similar to Auto-Upgrade but it allows to pull a version of b2evolution from an SVN repository. This is only useful if you have set up an SVN repository for the development of your website. more »

General rule Short Answer: Yes, as a general rule, the upgrade will make changes to your database! This means it is very important to have a backup of your existing system (database and files) before performing an upgrade. This way, if something is n… more »

If you have 2 backups of your site and want to compare them to see what changed from one to the next, or if you want to compare a backup to your current site, here’s what you can do: Comparing files On your Linux web server command line, type:… more »

phpMyAdmin is a tool that lets you peek and poke directly into your MySQL database. It is a PHP application just like b2evolution, except it has nothing to do with b2evolution. Nevertheless, you can use phpMyAdmin to connect to your b2evolution database… more »

This is for all errors that look something like "Illegal mix of collations xxx and yyy for operation ‘=’(Errno=1267)" This is an error generated by MySQL when several fields in the database don’t match each other. This can… more »

User moderators have rights to delete those users data which they can edit, even if they don’t have specific permission to delete those data. more »

This tab lets you configure IP address ranges and specify whether they are trusted, suspect or blocked (they can also be unknown). more »

On your system you typically want to restrict your file permissions to the maximum for best security, but not as much as b2evolution will not be able to save uploaded or cached files any more. Optimal file permissions are basically a tradeoff between s… more »

Common SQL errors and how to resolve them at: mySQL docs more »

If you get this error, it is most likely you recently changed something in a file. The error is often caused by added whitespace (space or line feed) *before* the first <?php or *after* the closing ?>. You can remove the error by opening the f… more »

Short answer: your PHP is either out of memory or out of allowed execution time! more »

Please see the following pages: Directory And File Permissions Media File Permission Errors ((security/)) more »

List of all templates used by b2evolution. more »

How email skins work. Explanation of the /skins_email directory. more »

The default permissions for each group can be modified on the User Groups Tab by clicking on the group name. New groups can also be created by clicking on the "Add group" link. more »

In addition to being able upload a new profile picture through the Identity tab of your profile located on the main user screen, you can also navigate to the Profile Picture tab, as well. more »

A Site Visitor that is not logged in (yet), either because he has no user account (yet) or because he chose not to log in (yet). more »

By default, b2evolution saves a cached version of all your public blog pages and only refreshed that cache every 10 minutes. This is very handy in case one of your blog posts gets very popular, as it allows you web server to serve the page really quick… more »

You can control every aspect of your blog’s functionality and appearance through several levels on customization: Backoffice settings Widgets Skins / Themes Skin parameters Plugins Customizing or Developing your own skins We… more »

One of b2evolution’s design goals was to not require plugins for most common situations, in order to avoid PluginHell?. For example, advanced features such as SEO options and Website Analytics are already integrated into the back office. This is… more »

A database backup is typically an SQL file with a name like b2evo_db.sql or b2evo_db.sql.gz. Th .gz at the end means the file is compressed with gzip. If you want to restore such a backup on your existing or a new server, there are several ways: I… more »

b2evolution has a method to automagically apply styles to each widget you might select for any given container. Your skin needs to use a special class caller in order to get the automagic classes to happen. After that, your style sheet needs to say what… more »

Generate your tracking code snippet The Google Analytics documentation about how to generate your tracking code snippet can be found here: http://support.google.com/analytics/bin/answer.py?hl=en&answer=1008080 The code snippet will look somethin… more »

Plugins allow you to extend the functionality of your blog. more »

The Front Office is the part of b2evolution that is immediately visible to SiteVisitors? when they arrive on the site. The Front Office typically has a customized look & feel provided through a Skin or evoSkin. Accessing the front office typically… more »

The Back-Office, also called the Admin Interface is the part of b2evolution you can access under /evoadm.php. It can only be accessed by Logged-in Users with appropriate permissions. See: Back-office Reference more »

Renderer plugins are plugins that will process the text of a blog Post or Item and render it in a more complex way than just plain text. Examples of this include: creating paragraphs, creating bold text, creating links, inserting images, inserting vide… more »

Widgets are small applications that can be inserted into your blog. You can edit widgets in the BackOffice using the Blogs > [Blog Name] > Widgets tab. The widgets tab lists containers that represent different areas of your blog, such as the head… more »