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Rob Allen:
Use statements
Mar 17, 2014 @ 11:13:08

Rob Allen's latest post focuses in on something that's been a part of PHP for a while now, back when namespacing was introduced - the "use" keyword. He shares some thoughts, both from others and himself, about whether or not they make code more readable.

I was having a discussion on IRC about use statements and whether they improved code readability or not. [...] Those longer class names make it a little hard to quickly parse what it going on. The [example with "use" statements] is clearly less cluttered, but is at the expense of ambiguity. Exactly what class is User? I would have to go to the top of the file to find out. Should I use aliases? If so, how should I name them?

He went out to Twitter for advice from other PHP developers on the issue too. The feedback from his question came mostly in support of the "use" statements:

  • "I think use statements just abstract where the class is coming from. Some people find that useful."
  • "I think it's helpful seeing all of the packages used by a class without having to look through the full code."
  • "One reason I like them is that I can glance at a file and know dependencies immediately."
  • "I do appreciate what you are saying about the indirection use statements introduce."

There's also a bit of talk about "aliasing" with namespaces rather than the full classname, then using the namespace and class name in the code to "minimise ambiguity".

tagged: use statement namespace twitter advice feedback alias

Link: http://akrabat.com/php/use-statements/