Why rename it to `$arguments`? I think `$args` is a clear abbreviation. Generally, this idea is also followed by the PHP language: Write out a word fully, unless its shortening is standard and clear.

In programming, shortening "argument" to "arg" is quite traditional: See [argc and argv](http://crasseux.com/books/ctutorial/argc-and-argv.html) in the C language and [$argc](http://www.php.net/manual/en/reserved.variables.argc.php) and [$argv](http://www.php.net/manual/en/reserved.variables.argv.php) in PHP. Even in build-in PHP functions, the shortening of "argument" to "arg" is typically used, and also the shortening of "arguments" to "args". For example, see [func_get_arg](http://docs.php.net/manual/en/function.func-get-arg.php), [func_get_args](http://docs.php.net/manual/en/function.func-get-args.php), [func_num_args](http://docs.php.net/manual/en/function.func-num-args.php). The use of "args" as a shortening for "arguments" is typical even within [standard examples](http://www.php.net/manual/en/function.func-num-args.php#example-5208) in PHP documentation.

While it is not necessary for us to endorse these practices, I don't see why we shouldn't. I don't believe making your recommended change here increases code maintainability or clarity.