php生成sitemap相关有关问题？
php生成sitemap相关问题？？？
看别人网站上都有类似于：首页->文章->某某文章这样的东东，于是就查了一下，貌似又与网站地图有关，也就是sitemap，但是查了一下，sitemap又有谷歌的和百度的，这几个有什么区别吗？？用哪个好啊？？还有就是用php怎么生成sitemap啊？？？还有什么放在robots下，什么啊这是。。。更迷茫了，，，求高人指点，回答请说明原理，小弟感激不尽
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首页->文章->。。。
这个不是面包屑吗？
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没什么原理，就是安装蜘蛛要求的格式，将网站一些对蜘蛛来说重要的信息写在一个约定格式的文件里
http://www.sitemaps.org
百度怎么弄不知道，其他常见的搜索引擎都遵从如上格式要求。包括文件修改频率，修改时间及优先级等
对php来说，要做的就是构造一个字符串，保存一个文件而已
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lz可以找个sitemap文件来看看，就是固定格式的xml文件，像 http://domain.name/sitemap.xml 这种，是给搜索引擎看的，利于SEO。
而你说的 首页->栏目->文章 这种就是二楼说的breadcrumb，用php输出当前的分类、文章名称就可以了。
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