Using plugins and third party features

Installing third party plugins


Official plugins and extensions reside within /zp-core/zp-extensions. You should never install third party plugins there. Instead you need to install them within the root /plugins folder.

Zenphoto plugins consist at least of one file  <pluginname>.php. It may optionally use a folder with the same name within the plugins folder that contains files like extra functions, css files or images. Example:

plugins/<yourplugin>/ (contains additional files needed by your plugin)

If you download a (third party) plugin and uncompress (unzip) it you will often have the file or the file and folder within another folder. Don't upload that folder but only its content as shown above to the /plugins folder directly. The third party plugin should now show up on the plugins tab on the backend.


Not all themes are setup with all plugin features because they are (...)

Login and password problems

What is the link to login on the backend?

  1. mod_rewrite support: <path to your installation>/admin
  2. no mod_rewrite: <path to your installation>/zp-core/admin.php

Forgotten admin password

  1. If you supplied an email address in the Admin options there should be a Captcha string image on the log-on page. Entering that string as the log-on password will email you a link to reset your password.
  2. If the Captcha is not there, or if you don't get the email, you need to delete the administrators table in your database and re-run setup.

Problems logging in on the backend

First please review "Forgotten admin password" above. If you are still having problems after following that advice you will have to enable some debugging to allow the developers to observe what is happening when you attempt your login. Locate your site's global-definitions.php file. Using a text editor find the line which contains

define('DEBUG_LOGIN', false); // set to true to log admin saves and login attempts (...)

Site protection

Image hotlinking protection

Although Zenphoto has an option for image protection it does only protect from getting the (full) image link from your gallery site itself but not prevent real hotlinking from outside. Everyone who knows how Zenphoto stores images can find out the direct link with ease.

You can change the location for your albums by modifying the zp-config.php file. There is commentary in the file that will guide you in making such a change. Please carefully note the comments, specially for "external" album folders. Also note that server filesystem permissions settings may prevent you from making these changes.

So, to really protect your images from hotlinking you need to use .htaccess (if you server supports this). Here is a little generator tool for this: We (...)

Installation problems

Notes about deprecated functions

In the process of adding features and improving Zenphoto we occasionally find we need to change the way something worked in the past. Thus we may make some theme functions obsolete. When this happens we try to maintain the old function name to keep un-migrated themes working. But we move these functions to a plugin named "deprecated-functions" so that sites which are up-to-date do not have the overhead of having them loaded each page refresh. This plugin will cause an error notification upon use of the function so that you will know your theme needs to be updated. Generally this notification will explain what needs to be updated.

These messages can be annoying once you know that theme modification is needed. So, the plugin also has options that let you disable the message on those functions that you recognize need replacing. Disable the message and your theme will work as it did in the (...)

Moving and changing existing installations

Changing the folder name Zenphoto is installed in

If you did not install Zenphoto in the root of your webspace but in a separate folder (called "zenphoto" for example) just rename it.
After that you need to do one of these things:

  1. Re-run setup (you might need to unprotect the setup files)
  2. Or manually edit your .htaccess file and change the RewriteBase at the beginning to the current folder name. #1 would do that for you.

Moving on the same server

  1. Unprotect the setup scripts.
    1. Physical move: If you installed Zenphoto in a subfolder named for example Zenphoto and just want to move it to the root or another folder, just copy the complete content (all files and folders) of the folder to the new location. (...)


A plugin to generate preview thumbs from pdf, eps,ai (Adobe Illustrator) and tiff file formats. Ghostscript is required to be installed on the server.

Content macros

Note: The example macros in this text contain a space after the first and before the last bracket. This is to avoid them being executed. On real usages there should be none.


Zenphoto 1.4.5 introduced the content macros. The overall concept follows the shortcodes Wordpress features. A simple content macro looks like this (spaces to avoid execution only!):


This is one of the default ones (later more) and will print the Zenphoto version number.

Content macros are added directly as text to fields. They work in the following places:

  • Codeblock content
  • Gallery description
  • Image description
  • Album description
  • Zenpage article content
  • Zenpage page content

If you need them to work on other places you can use the function applyMacros($text). (...)

Zenphoto 1.4.5 release is on its way

Implementation has closed for the 1.4.5 release. You can preview it from the Development Builds link on the Download page of our Website. The release notes can be found here:

Theme Developers especially should study the developer's notes and prepare upgrades to your themes.

We welcome all parties to test this release in any way you are able. Use the GitHub issues for anything you find.


Zenphoto is a bugfix release. Multiple minor errors are corrected.

A Cross Site Reference Forgery security hole has been closed. Thanks to Daniel Yang for reporting the issue to us.

As usual we recommend all users upgrade for the latest updates and fixes. For more detailed info about the fixes please review the GitHub issues list. presents contributor profile pages!

Zenphoto is a smaller CMS with a small community but from all over the world. We made these new pages for these reasons: 

  • Showcasing your contributions
  • Easier maintenance of author credits as we don’t have to change multiple entries if a user name or website link changes
  • And we do admit: A bit curiosity about activity and number of contributors overall

We value and welcome all contributions to the project. Be it as an officially committed team member, by providing bug fixes to releases or creating third party solutions. Therefore we do list people that haven’t contributed for years. 

So what is it? 

On each extension or theme entry on our site you now see a credit box on the right (example) that lists all developers/authors that contributed this. If we know it shows the real name and the screename. Each name is linked to an specific page for this developer that we (...)