fair point, but they're rather costly due to the amount of memcpy'ing in my experience.. you've probably seen/know this, given that you know PHP internals :),

fair point, but they're rather costly due to the amount of memcpy'ing in my experience.. you've probably seen/know this, given that you know PHP internals :), but for others: http://nikic.github.io/2011/12/12/How-big-are-PHP-arrays-really-Hint-BIG.html http://nikic.github.io/2011/12/12/How-big-are-PHP-arrays-rea...