When loading and running XCache (either version 1,3, 1.2, 1.2.1, 1.2.2, 1.0.3 or any other future or earlier versions) as PHP Zend extension as PHP opcode cacher to speed up a website delivery performance, the following error may occur: XCache requires Zend Engine API version 220051025. The Zend Engine API version 220060519 which is installed, is newer. Contact mOo at http://xcache.lighttpd.net for a later version … Continue reading Fix XCache Requires Zend Engine API Old Version Installed PHP Error