Applying FilterIterator to Directory Iteration
I'm currently doing research and prototyping for autoloading alternatives in Zend Framework 2.0. One approach I'm looking at involves creating explicit class/file maps; these tend to be much faster than using the include_path, but do require some additional setup.
My algorithm for generating the maps was absurdly simple:
- Scan the filesystem for PHP files
- If the file does not contain an interface, class, or abstract class, skip it.
- If it does, get its declared namespace and classname
The question was what implementation approach to use.
I'm well aware of RecursiveDirectoryIterator, and planned to use that. However, I also had heard of FilterIterator, and wondered if I could tie that in somehow. In the end, I could, but the solution was non-obvious.
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