Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[28000] [1045] Access denied for user 'root'@'localhost' (using password: NO)' in /opt/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php:129
Stack trace:
#0 /opt/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php(129): PDO->__construct('mysql:dbname=cl...', 'root', '', Array)
#1 /opt/ZendFramework/library/Zend/Db/Adapter/Pdo/Mysql.php(109): Zend_Db_Adapter_Pdo_Abstract->_connect()
#2 /opt/ZendFramework/library/Zend/Db/Adapter/Abstract.php(459): Zend_Db_Adapter_Pdo_Mysql->_connect()
#3 /opt/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('DESCRIBE `sessi...', Array)
#4 /opt/ZendFramework/library/Zend/Db/Adapter/Pdo/Mysql.php(169): Zend_Db_Adapter_Pdo_Abstract->query('DESCRIBE `sessi...')
#5 /opt/ZendFramework/library/Zend/Db/Table/Abstract.php(835): Zend_Db_Adapter_Pdo_Mysql->describeTable('session', NULL)
#6 /opt/ZendFramework/library/Zend/Db/Table/Abstract.php(857): Zend_Db_Table_Abstract->_setupMeta in /opt/ZendFramework/library/Zend/Controller/Plugin/Broker.php on line 336

Fatal error: Undefined class constant 'CONNECT' in /opt/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php on line 116