Mert Oztekin wrote:
> IMO, array_merge() is easy to use, however it suppose to use more cpu than 
> other options. If you are a performance freak, i suggest you to not choose 
> array_merge() solution. (also you execute date() and md5() functions even if 
> you wont need to use them)
> In the other way, I think first option (with if() ones) seems more readable 
> than other ones.

>From a performance view, check out these numbers

To see the source:

What a surprising difference in numbers!!!

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