<?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() { $this->router =& load_class('Router'); log_message('debug', "URI Class Initialized"); } // -------------------------------------------------------------------- /** * Fetch a URI Segment * * This function returns the URI segment based on the number provided. * * @access public * @param integer * @param bool * @return string */ function segment($n, $no_result = FALSE) { return ( ! isset($this->router->segments[$n])) ? $no_result : $this->router->segments[$n]; } // -------------------------------------------------------------------- /** * Fetch a URI "routed" Segment * * This function returns the re-routed URI segment (assuming routing rules are used) * based on the number provided. If there is no routing this function returns the * same result as $this->segment() * * @access public * @param integer * @param bool * @return string */ function rsegment($n, $no_result = FALSE) { return ( ! isset($this->router->rsegments[$n])) ? $no_result : $this->router->rsegments[$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()) { return $this->_uri_to_assoc($n, $default, 'segment'); } /** * Identical to above only it uses the re-routed segment array * */ function ruri_to_assoc($n = 3, $default = array()) { return $this->_uri_to_assoc($n, $default, 'rsegment'); } // -------------------------------------------------------------------- /** * Generate a key value pair from the URI string or Re-routed URI string * * @access private * @param integer the starting segment number * @param array an array of default values * @param string which array we should use * @return array */ function _uri_to_assoc($n = 3, $default = array(), $which = 'segment') { if ($which == 'segment') { $total_segments = 'total_segments'; $segment_array = 'segment_array'; } else { $total_segments = 'total_rsegments'; $segment_array = 'rsegment_array'; } if ( ! is_numeric($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 $retval; } $segments = array_slice($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') { return $this->_slash_segment($n, $where, 'segment'); } // -------------------------------------------------------------------- /** * Fetch a URI Segment and add a trailing slash * * @access public * @param integer * @param string * @return string */ function slash_rsegment($n, $where = 'trailing') { return $this->_slash_segment($n, $where, 'rsegment'); } // -------------------------------------------------------------------- /** * Fetch a URI Segment and add a trailing slash - helper function * * @access private * @param integer * @param string * @param string * @return string */ function _slash_segment($n, $where = 'trailing', $which = 'segment') { if ($where == 'trailing') { $trailing = '/'; $leading = ''; } elseif ($where == 'leading') { $leading = '/'; $trailing = ''; } else { $leading = '/'; $trailing = '/'; } return $leading.$this->$which($n).$trailing; } // -------------------------------------------------------------------- /** * Segment Array * * @access public * @return array */ function segment_array() { return $this->router->segments; } // -------------------------------------------------------------------- /** * Routed Segment Array * * @access public * @return array */ function rsegment_array() { return $this->router->rsegments; } // -------------------------------------------------------------------- /** * Total number of segments * * @access public * @return integer */ function total_segments() { return count($this->router->segments); } // -------------------------------------------------------------------- /** * Total number of routed segments * * @access public * @return integer */ function total_rsegments() { return count($this->router->rsegments); } // -------------------------------------------------------------------- /** * Fetch the entire URI string * * @access public * @return string */ function uri_string() { return $this->router->uri_string; } // -------------------------------------------------------------------- /** * Fetch the entire Re-routed URI string * * @access public * @return string */ function ruri_string() { return '/'.implode('/', $this->rsegment_array()).'/'; } } // END URI Class ?>