php 获取frame的title解决方案
php 获取frame的title
我现在有一个网站。网站的域名（A.com）是一个空壳，只是嵌入了一个frame，指向另一个网站（B.com/XXX）。
我现在希望能使A.com的网站标题自动与B.com/XXX的标题进行同步。
不知道应该怎么办了……
------解决方案--------------------
js本来是可以搞定的，不过大部分搜索引擎都 不执行js 所以你还是在后台来实现比较好。
比如先file get contents b.com/xxx 获取到title 然后在设置a.com的title
------解决方案--------------------
由于是嵌入的iframe，所以A网站的Javascript没有权限获得B网站的标题，只能通过php在后台更新。
A可以定期主动轮询B，或者B在标题变动时主动调用A的接口
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