[TYPO3-core] RFC: #13675: Use array_map() for t3lib_div::intExplode

[Christian Kuhn]

* Committed to trunk rev. 7053
* Committed to 4.3 rev. 7054

after my additional +1 on reading and testing, my profiling showed a 
performance boost of 50% for this method.


Thanks
Christian

Benjamin Mack wrote:
> Hey,
> 
> we (Nikolas and me) just found out that array_walk is the fastest method 
> here, array_map is just easier to read, but not really faster.
> 
> Check out v3 with array_walk, which is attached.