PHP5.3及以上无法支持Zend Optimizer,必须要安装全新的Zend Guard Loader,所以记录下过程 x86:http://downloads.zend.com/guard/5.5.0/ZendGuardLoader-php-5.3-linux-glibc23-i386.tar.gz x64:http://downloads.zend.com/guard/5.5.0/ZendGuardLoader-php-5.3-linux-glibc23-x86_64.tar.gz CentOS 6.4 6…