CI面包屑的使用，附源码

做系统开发的时候，面包屑是经常使用的东西，给大家提供一个面包屑类：

<?php // Breadcrumb generator for CodeIgniter class Breadcrumb { // variables public $link_type = ' > '; // must have spaces around it public $breadcrumb = array(); public $output = ''; // clear public function clear() { // clear the breadcrumb library to start again $props = array('breadcrumb', 'output'); // loop through foreach($props as $val) { // clear $this->$val = null; } // completed return true; } // add a "crumb" public function add_crumb($title, $url = false) { // pass into breadcrumb array $this->breadcrumb[] = array('title' => $title, 'url' => $url); // completed return true; } // change link type public function change_link($new_link) { // change $this->link_type = ' ' . $new_link . ' '; // the spaces are added for visual reasons // completed return true; } // produce output public function output() { // define local counter $counter = 0; // loop through breadcrumbs foreach($this->breadcrumb as $key=>$val) { // do we need to add a link? if($counter > 0) { // we do $this->output .= $this->link_type; } // are we using a hyperlink? if($val['url']) { // add href tag $this->output .= '<a href="' . $val['url'] . '">' . $val['title'] . '</a>'; } else { // don't use hyperlinks $this->output .= $val['title']; } // increment counter $counter++; } // return return $this->output; } }
使用方法，如果你使用的是CI框架，

//加载面包屑类

$this->load->library('breadcrumb');
$this->breadcrumb->add_crumb('首页',site_url());
$this->breadcrumb->add_crumb($pcateName,site_url('travelroute/getByCate/'. $pcate));
$this->breadcrumb->add_crumb($data['curCateName']);
$this->breadcrumb->change_link('&gt;&gt;');
$data['breadcrumb'] = $this->breadcrumb->output();