Failed loading /usr/lib/php/zend/ZendOptimizer-5.3.so: cannot open shared object file: No such file or directory
Recently I upgraded PHP 5.2 to PHP 5.3 on a CentOS Linux server because of a PHP 0day and noticed an error complaining about ZendOptimizer-5.3.so which is the library loaded into PHP. After some research I found out that it doesn’t look like Zend Optimizer is available for PHP 5.3 on CentOS Linux and will…