php5.6.9+apache2.4.12+mysql5.5 Manual configuration Environment Mysqli_connect is not available.

Apache+php has been loaded successfully. But there were some problems when we built MySQL.

Configuration in php.ini:

; Extension=php_mysql.dll
; Extension=php_mysqli.dll
Before the semicolon has been removed;

; Directory in which the loadable Extensions (modules) reside.
; Http://php.net/extension-dir
; Extension_dir = "D:/rar/webserver/php/php/ext"
; On Windows:
; Extension_dir = "D:/rar/webserver/php/php/ext"
The extension file directory has been changed to the actual installation directory;

Baidu, Google for a long time, probably mentioned are the above solutions are invalid.
Another mention of the php5.3 after the MYSQLND, ask with this relationship?
Please thank the seniors for their advice.

Reply content:

Apache+php has been loaded successfully. But there were some problems when we built MySQL.

Configuration in php.ini:

; Extension=php_mysql.dll
; Extension=php_mysqli.dll
Before the semicolon has been removed;

; Directory in which the loadable Extensions (modules) reside.
; Http://php.net/extension-dir
; Extension_dir = "D:/rar/webserver/php/php/ext"
; On Windows:
; Extension_dir = "D:/rar/webserver/php/php/ext"
The extension file directory has been changed to the actual installation directory;

Baidu, Google for a long time, probably mentioned are the above solutions are invalid.
Another mention of the php5.3 after the MYSQLND, ask with this relationship?
Please thank the seniors for their advice.

5.4 Start PHP By default with the built-in MYSQLND for Mysql/mysqli/pdo_mysql support. The mysql/mysqli extension is turned on, indicating the Extension_dir directory, After restarting the Apache service, you can see in the Phpinfo page that the mysql/mysqli extension indicates that the extension is loaded properly.

Remove the semicolon in front of the extended directory, and it mysqlnd doesn't matter. Have php_mysqli.dll you? php.ini mysqli Open all of the following extensions to the ~

Suggestions
Error_reporting (E_all);
Ini_set (' display_errors ', ' 1 ');
Then follow the error log step-by-step.

