The PDO extension is required for this adapter but the extension is not loaded

Question

I am getting the following exception when i try to use the fetchall method of the Zend_Db_Table_Abstract class...

An error occurred4545
EXCEPTION_OTHER
Excep         


        

Answer 1

First of all, you cannot have both :

extension=pdo.so
extension=pdo_mysql.so

Which are for Linux, and :

extension=php_pdo.dll 
extension=php_pdo_mssql.dll 

Which are for windows : you've got to choose, depending on the system you are using.

As you are on windows, you should use the .dll version.

But note that you used :

extension=php_pdo_mssql.dll 

i.e. you loaded the pdo_mssql extension -- which is for Microsoft SQL Server, and not MySQL.

Instead, you should load the extension for MySQL :

extension=php_pdo_mysql.dll 

After correcting that, restart Apache ; and things should get better.

If things don't get better, you should check the output of phpinfo() :

• At the beginning of phpinfo()'s output, it indicates which php.ini file is loaded ; make sure you modified the right one.
• Check, lower in the file, if there is a section about pdo_mysql
  • If not, check Apache's error_log, just in case ;-)