适合所有ECSHOP内核的系统，比如小 京东，大商创，等等
1、打开include/lib_common.php，在尾部添加函数
/**
* 显示当前城市
*
* @return array
*/
function s_city()
{
$s_city_id = $_SESSION['s_city_id'];
$s_city_name = $_SESSION['s_city_name'];
if (empty($s_city_id) && empty($s_city_name))
{
$s_city_ip = real_ip();
$url = 'http://ip.taobao.com/service/getIpInfo.php?ip=' . $s_city_ip;
$json = file_get_contents($url);
$arr = json_decode($json, true);
if ($arr['data']['country_id']=="-1" || $arr['data']['city']=="")
{
$s_city_name = "LAN";
}
else
{
$s_city_name = $arr['data']['city'];
$s_city_name = str_replace("区","",str_replace("市","",$s_city_name));
$sql = "SELECT region_id FROM " .$GLOBALS['ecs']->table('region'). " WHERE region_name Like '$s_city_name%'";
$s_city_id = $GLOBALS['db']->getOne($sql);
$_SESSION['s_city_id'] = $s_city_id;
$_SESSION['s_city_name'] = $s_city_name;
}
}//echo $s_city_ip;
return $s_city_name;
}
2、打开themes/[模板目录]/library/page_head.lbi，在合适位置添加：
<div class="city">
<span>{$s_city}</span><em><a href="/s_area.php">选择其它城市</a></em>
</div>
上面的样式南非要自己设，，不多说，，
并在themes/[模板目录]下新建一个模板文件s_area.dwt，模板的核心代码是：
<!-- {foreach from=$aera_list item=aera} -->
<dl class="aera_s">
<dt><a href="#top" class="fh">返回</a><a href="/s_area.php?city_id={$aera.region_id}">{$aera.region_name}</a></dt>
<dd>
<!-- {foreach from=$aera.city item=aeras} -->
<a href="/s_area.php?city_id={$aeras.region_id}">{$aeras.region_name}</a>
<!-- {/foreach} -->
<div class="clear"></div>
</dd>
<div class="clear"></div>
</dl>
<!-- {/foreach} -->
其它的，如模板头，模板尾什么的，根据自身需要修改。
3、在根目录下新建s_area.php文件，核心代码是：
define('IN_ECS', true);
require(dirname(__FILE__) . '/includes/init.php');
header('Content-type: text/html; charset=' . EC_CHARSET);
$s_city_id = $_REQUEST['city_id'];
if (empty($s_city_id))
{
if ((DEBUG_MODE & 2) != 2)
{
$smarty->caching = true;
}
if (!$smarty->is_cached($templates, $cache_id))
{
/* 模板赋值 */
assign_template();
$position = assign_ur_here();
$smarty->assign('page_title', $position['title']); // 页面标题
$smarty->assign('show_marketprice', $_CFG['show_marketprice']);
$smarty->assign('sort_goods_arr', $sort_goods_arr); // 商品列表
$smarty->assign('categories_pro', get_categories_tree_pro()); // 分类树加强版/* 周改
$smarty->assign('s_city', s_city()); // 城市选择
$smarty->assign('aera_list', s_get_regions());
}
$smarty->display("s_area.dwt", $cache_id);
}
else
{
$s_city_id = mysql_like_quote($s_city_id);
$sql = "SELECT region_name FROM " .$GLOBALS['ecs']->table('region'). " WHERE region_id=$s_city_id";
$s_city_name = $GLOBALS['db']->getOne($sql);
if(empty($s_city_name)) {
Header("Location: /s_area.php");
}
$_SESSION['s_city_id'] = $s_city_id;
$_SESSION['s_city_name'] = $s_city_name;
clear_all_files($ext = '');
Header("Location: /index.php");
}
function s_get_regions($parent)
{
$aera_list=get_regions(1,1);
foreach ($aera_list AS $k => $v)
{
$aera_list[$k]['city'] = get_regions(2,$v['region_id']);
}
return $aera_list;
}
这个放在s_area.php页面的下面
上面只是主要代码，应该放哪，怎么放，还要根据实际需要！
上面只是主要代码，应该放哪，怎么放，还要根据实际需要！
上面只是主要代码，应该放哪，怎么放，还要根据实际需要！
示范样式：
.city{float:left; padding:35px 15px 0px 15px; width:75px; margin:0px 10px 0px 10px;}
.city span{ font-size:18px; display:block; border-bottom:1px solid #DDD; padding-bottom:8px; margin-bottom:5px; text-align:center;}
.city em{ display:block; text-align:center; color:#999;}
dl.aera_s{ display:block; clear:both; margin-bottom:15px; border:1px solid #DDD;}
dl.aera_s dt { height:30px; padding-left:10px; font-size:14px; font-weight:bold; background:url(../images/title_back.jpg); line-height:30px;}
dl.aera_s dt a.fh{ font-size:12px; color:#999; font-weight:normal; float:right; margin-right:15px;}
dl.aera_s dd { padding:0px 10px; min-height:30px;}
dl.aera_s dd a{ float:left; margin-right:15px; line-height:30px; color:#333;}
dl.aera_s a:hover{ color:#CF010E;}
注意，这个功能只是实现自动识别浏览者所在地区，并且提供地区选择。并不能实现真实的商品、广告按地区划分，，适合一部分客户需求。
这个思路同样也用到微信端，，看怎么用了。。