Adding URL Variable on CodeIgniter - php

Question

I want to add a new URL variable on CI 3.0 like site_url or base_url.
For example; I want to add an admin_url variable for administration area and assets_url variable for assets.
I checked CI 3.0 guide but couldn't find a solution.
Thanks in advance.

Answer 1

It's pretty straight forward.
Just go to your config.php which is located at /your_root/application/config directory
add at this line at the bottom of that file
$config["admin_url"] = "http://www.your_url.com/admin";
$config["assets_url"] = "http://www.your_url.com/assets";
To retrieve it anywhere in application use this
$your_admin_variable =$this->config->item("admin_url");
$your_assets_variable =$this->config->item("assets_url");
Your're in business :)

Answer 2

My solution.
Create new helper file and add this file to autoload.
So..
Create file application/helpers/global_helper.php
Inside your helper create functions for example:
<?php
function admin_url(){
return base_url() . "/admin/";
}
Now edit config/autoload.php
$autoload['helper'] = array('url','global');
Add to exists array your new helper.
And now anywhere you can use your function admin_url

Answer 3

in system/helpers/url_helper.php you will find
if ( ! function_exists('base_url'))
{
function base_url($uri = '')
{
$CI =& get_instance();
return $CI->config->base_url($uri);
}
}
so i guess if you create your own code like this
if ( ! function_exists('your_variable_name'))
{
function your_variable_name($uri = '')
{
$CI =& get_instance();
return $CI->config->your_variable_name($uri);
}
}
but it is better to extend the helper rather modifying it , so you can use the code above in application/helpers/MY_url_helper.php
and then you can call your custom variable as you normally do it with base_url
hope that helps

Answer 4

I got the answer now,
add these lines on system/helpers/url_helper.php file:
if ( ! function_exists('admin_css'))
{
/**
* Base URL
*
* Create a local URL based on your basepath.
* Segments can be passed in as a string or an array, same as site_url
* or a URL to a file can be passed in, e.g. to an image file.
*
* #param string $uri
* #param string $protocol
* #return string
*/
function admin_css($uri = '', $protocol = NULL)
{
return get_instance()->config->admin_css($uri, $protocol);
}
}
and add these lines on system/core/Config.php
public function admin_css($uri = '', $protocol = NULL)
{
$base_url = base_url('assets/staff/css').'/';
if (isset($protocol))
{
$base_url = $protocol.substr($base_url, strpos($base_url, '://'));
}
if (empty($uri))
{
return $base_url.$this->item('index_page');
}
$uri = $this->_uri_string($uri);
if ($this->item('enable_query_strings') === FALSE)
{
$suffix = isset($this->config['url_suffix']) ? $this->config['url_suffix'] : '';
if ($suffix !== '')
{
if (($offset = strpos($uri, '?')) !== FALSE)
{
$uri = substr($uri, 0, $offset).$suffix.substr($uri, $offset);
}
else
{
$uri .= $suffix;
}
}
return $base_url.$this->slash_item('index_page').$uri;
}
elseif (strpos($uri, '?') === FALSE)
{
$uri = '?'.$uri;
}
return $base_url.$this->item('index_page').$uri;
}
don't forget to autoload url_helper. With this way, you can use admin_css variable like this: <?php echo admin_css('foo.css'); ?>
If you use the other answers on this post, you can not use like <?php echo admin_css('foo.css'); ?>
Thank you all.