CodeIgniter issue with database

问题

I am following a beginner's tutorial for CodeIgniter, but I can't get the view to load correctly because I have a database connection error. I have followed everything step-by-step, and gone through it again several times, but not been able to fix it. Could someone please help me, or at least explain why this is happening?

Here is the database configuration I currently have setup:

$active_group = 'default';
$active_record = TRUE;

$db['default']['hostname'] = 'localhost';
$db['default']['username'] = 'root';
$db['default']['password'] = 'root';
$db['default']['database'] = 'helloworld';
$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;

I've also autoloaded the database library with the following code:

$autoload['libraries'] = array('database');

I would also like to point out that I am using PHP version 5.3.13. I not sure if the version of PHP would affect my code, so I added it anyway.

The exact error I'm getting is:

A Database Error Occurred

Unable to connect to your database server using the provided settings.

Filename: C:\wamp\www\CI\system\database\DB_driver.php

Line Number: 124

回答1:

$active_group = 'default';
$active_record = TRUE;

$db['default']['hostname'] = 'localhost';
$db['default']['username'] = 'root'; // default username if has not been set in phpmyadmin
$db['default']['password'] = ''; //leave it blank if has not been set in phpmyadmin
$db['default']['database'] = 'helloworld'; // this is your database name
$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;

回答2:

you might have tried to import the project to work space.Instead try to traverse to the project folder through project explorer

来源：https://stackoverflow.com/questions/15190196/codeigniter-issue-with-database

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php

database

codeigniter