Download at WordPress.org

If you have any seldom problem with the automatic upgrade procedure, please re-upload all files per FTP before you post a request at the forums (and only there please).

So, let’s start the countdown for iPhone 2.0 and WordPress 2.6… Have a nice weekend

Agents can manage listings, input price and common data such as number of bedrooms and baths, and not worry about formatting each page. The plugin provides starter templates to display listings, and a sidebar widget for featured listings. Agents can enhance listings with a photo gallery, video, panorama photos, downloads, and a location map. The listings information is nicely formatted with a tabbed interface.

Download at wordpress.org

So is this now a problem or not ? It’s a simple thing to strip out any HTML code, but does somebody see a real security problem ? Should I disallow any HTML code for editors , auhors and admins ?

Currently the development is slowed down, but not stopped. I feel version 0.9x is still good enough that it can live for a while, so that I can refactor main parts, which are not well designed. Currently I’m creating the template pages for gallery and album so that everybody is able to create there own output.

I got the main idea from the great plugins of Urban Giraffe, which are IMHO the best pattern for a modern MVC based PHP plugin. I can strongly recommend every plugin author to have a look for the plugins structure.

The development for v1.00 is still in progress, but based on my new project everything needs more time now. Currently I’m prepare a refactor of some old code. After two year experience and grown knowledge with PHP, WordPress and the plugin, a lot of things needs to be better… learning by doing.

In the forums I received a lot of feature requests, so I will include in the next time more filters, hooks and template function that this plugin is more extensible. You can watch the progress at the GoogleCode. It already contains a extended role system, so that a author can only edit his own galleries… (Please note : The current trunk is from time to time not working, so don’t use the code in a live system until you know what you do)

Final remark :If you like this plugin, it would be great if you can rate the plugin at wordpress.org (Currently 153 ratings). Thanks !

I got the failure “Fatal error: Out of memory ” or “Error : Exceed Memory limit. Require : xx.xx MByte”, but my image has only the size of 1 MB ?

After I answered this question now 1000 times , I hope this post will clarify this point. Let’s create a white image with the size of 640 x 480 (It’s the VGA resolution) and open this with a image viewer like IrfanView.

Let’s have a look at the bottom line :

The image requires a disk space (the file size) of 5.30 KB and a memory size of 900.04 KB

Now increase the resolution to 1024 x 768 :

The image requires still the file size of 5.30 KB but a memory size of 2.25 MB

Now look for a 4 Megapixel image (Resolution 2304 x 1728) :

The required memory size increases to 11.39 MB

And a 7.1 MP camera picture :

We need now 20.25 MB memory , but the file size is still 5.30 KB.

What do we learn from this test ? JPG, PNG (and other compression format’s) reduces the file size, but for image manipulation we need for each pixel a lot of memory space:

File size is not equal to the required memory space.

Inside the most web server the common image manipulation library for PHP is called GD and this library doesn’t work different then programs like Photoshop, Paintshop or others. A very rough calculation for the memory need under GD library is :

Width x Height x 8 (bits) x 3(channels) / 8 x 1.65

NextGEN Gallery shows you the current memory usage of WordPress and all loaded plugins inside the server settings :

Now have a look at your Memory Limit in the server settings and you can calculate the maximum resolution for your images, which you can manipulate (create thumbnails) with the GD library. It’s possible to change the memory limit, but there exist various way’s and not all of them are allowed at your web server. At the best contact your web hoster, if you want to increase this limit. A good and useful value for images is a limit of 64 MB.