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Purpose of PHP ReflectionClass Apart from Documenting

Dear all,

   I'm new to the concept of reflection. I have read into the concept but I'm not sure why it should be used apart from documenting the code.

   Invoking a method of a certain class via PHP ReflectionClass is more complicated than simply invoking the method by instantiating the class itself. So, why is ReflectionClass necessary?

   I understand that reflection can avoid hardcoding. Could you offer some examples of using the PHP ReflectionClass which makes coding more efficient?

Regards,
Ming
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tsuiwaiming
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tsuiwaiming
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1 Solution
 
Roger BaklundCommented:
It is used in metaprogramming, i.e. when "programming the program".

http://en.wikipedia.org/wiki/Metaprogramming

You can find some examples of the usage here:

http://php.net/oop5.reflection 
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tsuiwaimingAuthor Commented:
Dear cxr,

   Thanks for your message. I had read briefly the articles in the sources you offered while I was writing my question, though. May I clarify my question a bit? I'd like to know how PHP ReflectionClass helps in, say, a single webpage in which rows of a database are selected or updated.

Regards,
Ming
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Roger BaklundCommented:
I can't imagine how ReflectionClass would be helpfull in that scenario. I'm not saying it can not be helpfull, I just can't imagine how. :)
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