[TYPO3-core] RFC #13681: Improve performance of t3lib_div::revExplode

[Christian Kuhn]

* Committed v4 to:
trunk rev. 7170
TYPO3-4.3 rev. 7172

* Committed testcase to:
trunk rev. 7171

Thanks
Christian


Nikolas Hagelstein wrote:
> Bugtracker references:
> http://bugs.typo3.org/view.php?id=13681
> 
> Branches:
> TYPO3_4_3 & TRUNK
> 
> Problem:
> The function use a foreach loop for a simple strrev.
> 
> Solution:
> Replace foreach by array_walk.
> 
> Notes:
> Using array_walk  instead of loops for simple operations is
> significantly faster. Furthermore there is no need to use temp
> variables since array_walk directly manipuplates the given array - in
> contrast to array_map.