[TYPO3-core] RFC #12189: Add API functions for cleaning and flushing output buffers

[Rupert Germann]

Hi,

this is a SVN patch request.

Type: last minute API improvement

Bugtracker references:
http://bugs.typo3.org/view.php?id=12189

Branches: Trunk

Problem:
TYPO3 provides no generic way to clean or flush the php output 
buffering. A single ob_end_clean() might fail if there are nested output 
buffers.


Solution:
introduce 2 new functions:
t3lib_div::cleanOutputBuffers() and
t3lib_div::flushOutputBuffers()


Info:
this problem also exists in older branches.
Question: Should we add the new functions also to the older versions?
alternative would be to add the multilevel ob_cleaning to all needed 
places by hand.


greets
rupert
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