CodeIgniter - base_url() 函数不起作用

Question

I'm trying to combine CodeIgniter with free Bootstrap template. The problem is, when I try to load DataTable library it's not loading at all. I already try a few code but all code that load from local source doesn't work, when I tried to load from online source it work.

// Not Working
<script src="<?php echo base_url() ?>assets/bootstrap/plugins/datatables/jquery.dataTables.min.js"></script>
<script src="<?php echo base_url() ?>assets/bootstrap/plugins/datatables/dataTables.bootstrap.min.js"></script>'

// Not Working
<script src="<?php echo base_url('assets/bootstrap/plugins/datatables/jquery.dataTables.min.js') ?>"></script>
<script src="<?php echo base_url('assets/bootstrap/plugins/datatables/dataTables.bootstrap.min.js') ?>"></script>

// Not Working
<script src="<?php echo base_url()."assets" ?>/bootstrap/plugins/datatables/jquery.dataTables.min.js"></script>
<script src="<?php echo base_url()."assets" ?>/bootstrap/plugins/datatables/dataTables.bootstrap.min.js"></script>

// Working
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-2.2.3.min.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.dataTables/1.9.0/jquery.dataTables.min.js"></script>

I'm sure that the link for local source already typed correctly. Is there any Route or Security problem?

Answer 1

You have to load URL helper. To load in config/autoload.php file and add following code

$autoload['helper'] = array('url');

OR

in controller add following code

$this->load->helper('url');

then go to config.php in config folder and set

$config['base_url'] = 'http://example.com/';

Answer 2

Place this script

<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-2.2.3.min.js"></script>

At the top(Above all other script)

Answer 3

It Fixed,

The problem is the sort order on calling the JS, have to sort it like this:

<!-- jQuery 2.2.3 -->
<script src="<?php echo base_url() ?>assets/bootstrap/plugins/jQuery/jquery-2.2.3.min.js"></script>
<!-- Bootstrap 3.3.6 -->
<script src="<?php echo base_url() ?>assets/bootstrap/bootstrap/js/bootstrap.min.js"></script>
<!-- DataTables -->
<script src="<?php echo base_url() ?>assets/bootstrap/plugins/datatables/jquery.dataTables.min.js"></script>
<script src="<?php echo base_url() ?>assets/bootstrap/plugins/datatables/dataTables.bootstrap.min.js"></script>

and then another external sources. Thanks everyone.

Answer 4

您也可以使用另一个函数，如 site_url()