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

[Ingo Renner]

Hi all,

This is a SVN patch request

Type: tweak

Branches: trunk

BT reference: http://bugs.typo3.org/view.php?id=10511

Problem:
currently trimExplode() uses loops to process elements of arrays created 
by an explode before.


Solution:
Using native php functions that achieve the same goal is simpler, 
shorter, and most importantly faster.
To make sure the behavior stays as it is right now I created four unit 
tests.


Notes:
using the benchmark I usually get a speed up of 30-50%, I even had 70% 
once. After finding calls to trimExplode in roughly 380 places through 
out the core I guess that should do something...



all the best
Ingo

-- 
Ingo Renner
TYPO3 Core Developer, Release Manager TYPO3 4.2

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