Fatal error: Class 'PDO' not found in ...includes/database/database.inc on line 184

Fatal error: Class 'PDO' not found in ...includes/database/database.inc on line 184
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While browsing domain if you get above error then -
Please try to resolved issue with following steps. PDO support had been compiled in, but not enabled .Our server has PHP 5.2.x and 5.3x installed, with PDO support.
Adding
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extension=pdo.so extension=pdo_mysql.so
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to php.ini solved the problem.
Steps:
1. Create php.ini file
2. Add two lines
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extension=pdo.so
extension=pdo_mysql.so
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3.Save
4.restart httpd service
That's it.. :)
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