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<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* Code Igniter
*
* An open source application development framework for PHP 4.3.2 or newer
*
* @package CodeIgniter
* @author Rick Ellis
* @copyright Copyright (c) 2006, pMachine, Inc.
* @license http://www.codeignitor.com/user_guide/license.html
* @link http://www.codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* URI Class
*
* Parses URIs and determines routing
*
* @package CodeIgniter
* @subpackage Libraries
* @category URI
* @author Rick Ellis
* @link http://www.codeigniter.com/user_guide/libraries/uri.html
*/
class CI_URI {
var $router;
var $keyval = array();
/**
* Constructor
*
* Simply globalizes the $RTR object. The front
* loads the Router class early on so it's not available
* normally as other classes are.
*
* @access public
*/
function CI_URI()
{
$this->router =& _load_class('CI_Router');
log_message('debug', "URI Class Initialized");
}
// --------------------------------------------------------------------
/**
* Fetch a URI Segment
*
* This function returns the URI segment based on the number provided.
*
* @access public
* @param integer
* @param bool
* @return string
*/
function segment($n, $no_result = FALSE)
{
return ( ! isset($this->router->segments[$n])) ? $no_result : $this->router->segments[$n];
}
// --------------------------------------------------------------------
/**
* Generate a key value pair from the URI string
*
* This function generates and associative array of URI data starting
* at the supplied segment. For example, if this is your URI:
*
* www.your-site.com/user/search/name/joe/location/UK/gender/male
*
* You can use this function to generate an array with this prototype:
*
* array (
* name => joe
* location => UK
* gender => male
* )
*
* @access public
* @param integer the starting segment number
* @param array an array of default values
* @return array
*/
function uri_to_assoc($n = 3, $default = array())
{
if ( ! ctype_digit($n))
{
return $default;
}
if (isset($this->keyval[$n]))
{
return $this->keyval[$n];
}
if ($this->total_segments() < $n)
{
if (count($default) == 0)
{
return array();
}
$retval = array();
foreach ($default as $val)
{
$retval[$val] = FALSE;
}
return $default;
}
$segments = array_slice($this->segment_array(), ($n - 1));
$i = 0;
$lastval = '';
$retval = array();
foreach ($segments as $seg)
{
if ($i % 2)
{
$retval[$lastval] = $seg;
}
else
{
$retval[$seg] = FALSE;
$lastval = $seg;
}
$i++;
}
if (count($default) > 0)
{
foreach ($default as $val)
{
if ( ! array_key_exists($val, $retval))
{
$retval[$val] = FALSE;
}
}
}
// Cache the array for reuse
$this->keyval[$n] = $retval;
return $retval;
}
/**
* Generate a URI string from an associative array
*
*
* @access public
* @param array an associative array of key/values
* @return array
*/ function assoc_to_uri($array)
{
$temp = array();
foreach ((array)$array as $key => $val)
{
$temp[] = $key;
$temp[] = $val;
}
return implode('/', $temp);
}
// --------------------------------------------------------------------
/**
* Fetch a URI Segment and add a trailing slash
*
* @access public
* @param integer
* @param string
* @return string
*/
function slash_segment($n, $where = 'trailing')
{
if ($where == 'trailing')
{
$trailing = '/';
$leading = '';
}
elseif ($where == 'leading')
{
$leading = '/';
$trailing = '';
}
else
{
$leading = '/';
$trailing = '/';
}
return ( ! isset($this->router->segments[$n])) ? '' : $leading.$this->router->segments[$n].$trailing;
}
// --------------------------------------------------------------------
/**
* Segment Array
*
* @access public
* @return array
*/
function segment_array()
{
return $this->router->segments;
}
// --------------------------------------------------------------------
/**
* Total number of segments
*
* @access public
* @return integer
*/
function total_segments()
{
return count($this->router->segments);
}
// --------------------------------------------------------------------
/**
* Fetch the entire URI string
*
* @access public
* @return string
*/
function uri_string()
{
return $this->router->uri_string;
}
}
// END URI Class
?>
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