[Phpmyadmin-devel] Is PMA_STR_binarySearchInArr needed?

[Piotr Przybylski]

Hi,

For some time I was curious whether PMA_STR_binarySearchInArr is
needed at all, and my test showed that there are faster (sometimes
much faster) alternatives. Test for 100 000 iterations on PHP 5.3.4
(Windows, i5 2,53 GHz core):

PMA_STR_binarySearchInArr:    2.6606s
array_search:     1.8936s
isset:            0.0102s
array_key_exists: 0.0934s

Isset and array_key_exists require flipped array, but array_search is
a drop-in replacement that works faster, even though it does a linear
search. Code used to perform this test is at [1].

[1] http://pastebin.com/cJmpmCPh

-- 
Piotr Przybylski