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List all files in one directory PHP [duplicate]

What would be the best way to list all the files in one directory with PHP? Is there a $_SERVER function to do this? I would like to list all the files in the usernames/ directory and loop over that result with a link, so that I can just click the hyperlink of the filename to get there. Thanks! ...
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Is there a benefit to defining a class inside another class in Python?

What I'm talking about here are nested classes. Essentially, I have two classes that I'm modeling. A DownloadManager class and a DownloadThread class. The obvious OOP concept here is composition. However, composition doesn't necessarily mean nesting, right? ...
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Concatenating two one-dimensional NumPy arrays

...smetic than substantial, but it's good when the API is consistent (e.g. if all the numpy functions that take variable length argument lists require explicit sequences). – Jim K. Aug 24 '16 at 20:43 ...
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java get file size efficiently

...97.044 URL sum: 95534, per Iteration: 382.136 File must be caching the calls to the filesystem, while channels and URL have some overhead. Code: import java.io.*; import java.net.*; import java.util.*; public enum FileSizeBench { LENGTH { @Override public long getResult() ...
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Python memoising/deferred lookup property decorator

...nce, but they're a real bottleneck to calculate that first time and only really accessed for special cases. Hence they can also be cached after they've been retrieved from the database (this therefore fits the definition of memoisation where the input is simply "no input"). ...
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django change default runserver port

... You can't run the development server programmatically, so a custom command won't work unless it calls the shell using something like call. If this solution works for you please make sure to mark it as solved. – Pablo Albornoz May 13 '1...
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Add custom messages in assert?

...rk; they’re compile-time constants and their use in this context is trivially optimized away. There is no runtime cost. – zneak Aug 9 '19 at 8:46 ...
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Finding the source code for built-in Python functions?

...out what file a particular module or function is implemented in you can usually print the __file__ attribute. Alternatively, you may use the inspect module, see the section Retrieving Source Code in the documentation of inspect. For built-in classes and methods this is not so straightforward since ...
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Writing unit tests in Python: How do I start? [closed]

.... It is standard which means that it's kind of guaranteed to work well. Finally, anyone who uses your code doesn't need to install extra packages. – Jeyekomon Jul 6 '18 at 15:04 ...
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In Intellij, how do I toggle between camel case and underscore spaced?

... I use a plugin called String Manipulation which has the capabilities you're looking for (and more). Select historyOfPresentIllness and press Alt+M to bring up the plugin menu, then press: 5 - To snake_case (or to camelCase) which convert...