[TYPO3-core] RFC #10511: simplify and speed up t3lib_div::trimExplode()

[Peter Foerger]

Hi Ingo,

Ingo Renner schrieb:
> 
> ok too bad, but I had to create a third version after noticing that the
> thing with create_function() is quite slow - slower than the foreach
> loop we had before.
> Thus I returned to the foreach loop for the case that we remove empty
> elements.


+1 by testing

> 
> speed improvements with this version:
> 10-25% when removing empty elements
> 25-40% when keeping empty elements


my benchmarks results have been appropriate, while testing on a rather
large string (> 6500 chars)

> 
> There will be another little boost when fixing the behavior of $limit,
> but that's a different issue.


looking forward to that patch

cheers
Peter