我正在使用CMS（已经购买，它没有被取消）。我的问题是，有时它变得非常慢，每个使用它的人都需要刷新几次，或等待10-15秒直到它出现。
我做了一些研究，我启用了Xdebug（如果我禁用它，apache将使用所有的Memory_limit，并且CPU将达到100％），我尝试使用Win32DisableAcceptEx，但是那没做诀窍。尝试卸载wamp并安装它的最新版本，但也无效。
我一直在寻找几天，询问制作这个CMS的人的支持，他们没有回复。如果我将嵌套级别更改为任何数字，它将执行相同的操作。如果我禁用Xdebug，那么现在我记住了memory_limit的大小，它仍然会达到它。老实说，我不知道发生了什么。我已经使用这个CMS一年了，从来没有遇到过这个问题。这是apache_error.log的一部分：
[Sun Nov 17 10:09:59.852157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP Fatal error: Maximum function nesting level of '500' reached, aborting! in C:\\wamp\\www\\system\\database\\drivers\\mysqli\\mysqli_driver.php on line 200, referer: http://oblivion-wow.com/application/themes/crusader_theme/css/cms.css
[Sun Nov 17 10:09:59.852157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP Stack trace:, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 1. {main}() C:\\wamp\\www\\index.php:0, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 2. require_once() C:\\wamp\\www\\index.php:228, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 3. News->__construct() C:\\wamp\\www\\system\\core\\CodeIgniter.php:1, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 4. MX_Controller->__construct() C:\\wamp\\www\\application\\modules\\news\\controllers\\news.php:11, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 5. Template->show404() C:\\wamp\\www\\application\\third_party\\MX\\Controller.php:67, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 6. Template->view() C:\\wamp\\www\\application\\libraries\\template.php:502, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 7. Template->handleNormalPage() C:\\wamp\\www\\application\\libraries\\template.php:139, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 8. Template->loadSideboxes() C:\\wamp\\www\\application\\libraries\\template.php:156, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 9. Custom->__construct() C:\\wamp\\www\\application\\libraries\\template.php:334, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 10. MX_Controller->__construct() C:\\wamp\\www\\application\\modules\\sidebox_custom\\controllers\\custom.php:9, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 11. Template->show404() C:\\wamp\\www\\application\\third_party\\MX\\Controller.php:67, referer: same
[Sun Nov 17 10:09:59.853157 2013] [:error] [pid 4884:tid 1548] [client 79.138.165.229:50638] PHP 12. Template->view() C:\\wamp\\www\\application\\libraries\\template.php:502, referer: same
这是mysqli_driver.php：http://pastebin.com/c4MkY5st