php - not found database name in codeigniter -


i have many file check in codeigniter project have not found database name please ans me

    $active_group = 'default'; $active_record = true;  $db['default']['hostname'] = dbhost; $db['default']['username'] = dbuser; $db['default']['password'] = dbpass; $db['default']['database'] = dbname; $db['default']['dbdriver'] = 'mysql'; $db['default']['dbprefix'] = ''; $db['default']['pconnect'] = true; $db['default']['db_debug'] = true; $db['default']['cache_on'] = false; $db['default']['cachedir'] = ''; $db['default']['char_set'] = 'utf8'; $db['default']['dbcollat'] = 'utf8_general_ci'; $db['default']['swap_pre'] = ''; $db['default']['autoinit'] = true; $db['default']['stricton'] = false;

normally set these equal env variable set values each level of production ex $db['default']['hostname'] = getenv('db_host');

$db['default']['hostname'] = 'localhost';//ex 'localhost' $db['default']['username'] = 'root';//username of database $db['default']['password'] = 'root';//password of database $db['default']['database'] = 'databasename';//name of data base $db['default']['dbdriver'] = 'mysql'; $db['default']['dbprefix'] = '';//you can leave $db['default']['pconnect'] = true;//you can leave $db['default']['db_debug'] = true;//you can leave $db['default']['cache_on'] = false;//you can leave $db['default']['cachedir'] = '';//you can leave $db['default']['char_set'] = 'utf8';//you can leave $db['default']['dbcollat'] = 'utf8_general_ci';//you can leave $db['default']['swap_pre'] = '';//you can leave $db['default']['autoinit'] = true;//you can leave $db['default']['stricton'] = false;//you can leave

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