With the recent stir caused by the new iPhone, it's only natural that developers are looking for easy ways to make their sites as compatible as possible with the mobile platform. The Symfony project has posted a guide to helping you make your apps optimized for mobile use.

symfony 1.1 introduces native support for different formats and mime-types. This means that the same model and controller can have different templates based on the requested format. The default format is still HTML but symfony supports several other formats out of the box as defined in the factories.yml file.

Using this system, it's easy to add new output formats by adding to the default layouts the framework comes equipped with. The Content-Type can be changed and layouts can be disabled as needed. This lets you make a custom definition just for use with the iPhone without a lot of hassle.

They also include an example of how to make one of these optimized layouts, including some iPhone "screenshots" of the resulting pages.

Matthew Turland has come across an "interesting bug" in PHP's stream wrappers functionality - some strange 404 or 500 HTTP errors in one of his scripts.

I wrote a small script a while back that's gained a surprising amount of popularity thanks to a plug from the site that it posts to. [...] I learned that this [connection from the script] could be done with streams, I attempted to implement it in that fashion, but ran into strange issues where I would get 404 or 500-level HTTP errors rather than the response I was expected.

He eventually found the bug related to his problem (in the 5.2.x branch) but happily notes that it has been corrected and will be patched in the upcoming 5.3 (and 6) branches.