Is anyone using any of the PHP accelerators with recent versions of PHP eg; PHP Accelorater is an open source php cacheing program. (Just like ZEND ACCELERATOR but free.) Zend Costs over a $1000.00 . Check it out here: http://www.php-accelerator.co.uk/ But it is stated that it won't work with sites using the zend optimizer. How do we determine if customers are using the zend otimizer? Is anyone using Turck MMCache with recent versions of PHP? I haven't seem much recent development in either of these accelerators and wonder what is going on.