Links to Controller methods: CodeIgniter

I'm following this tutorial on CodeIgniter:

http://ie.mirror.twsweb-int.com/codeigniter/user_guide/tutorial/index.html

4th page of tutorial:

http://ie.mirror.twsweb-int.com/codeigniter/user_guide/tutorial/create_news_items.html

In the 4th page of the tutorial, he mentions that you should create your own successful entry page.

I want to create a link on the success.php that links back to the index page (calls news_index). IE in terms of URLs, I want a link that goes from

http://examp开发者_C百科le.com/codeigniter/index.php/news/create

to

http://example.com/codeigniter/index.php/news/

How are dynamic URLs like that made on CodeIgniter?

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First load the URL helper in your controller or Autoload file.

Then use the site_url() function and just pass news.

<?php echo site_url('news');?>

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If you take a look at this page - http://ie.mirror.twsweb-int.com/codeigniter/user_guide/helpers/url_helper.html you can see how the site_url() function works.

You just echo site_url('controller/method/segment1/segment2/etc'); so if you wanted to link to the http://example.com/codeigniter/index.php/news/ page you can do

<?php echo site_url('news'); ?>

and if you wanted to link to the http://example.com/codeigniter/index.php/news/create you can do

<?php echo site_url('news/create'); ?>

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you configure them on the routes.php on your codeigniter files.

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You can set site_url/base_url in config.php and load the URL helper in autoload.php file.