phpcas 客户端
出问题的配置（2台电脑，1台服务，1台应用）： 192.168.26:8081 做为cas的服务器端 192.168.2.27：81 作为phpcas客户端从 192.168.2.27：81 phpcas客户端访问 192.168.26:8081 服务器端程序，返回信息：Warning: DOMDocument::loadXML() [domdocument.loadxml]: Empty string supplied as input in E:\htdocs\php\SSOTest\CAS\domxml-php4-php5.php on line 42Notice: Trying to get property of non-object in E:\htdocs\php\SSOTest\CAS\domxml-php4-php5.php on line 195CAS Authentication failed!
You were not authenticated.You may submit your request again by clicking here.If the problem persists, you may contact the administrator of this site.
不出问题的配置（1台电脑，既做服务，又做应用）：192.168.2.27：80 做cas服务，192.168.2.27：81做客户端，访问就没有问题。。
出问题的配置（2台电脑，1台服务，1台应用）： 192.168.26:8081 做为cas的服务器端 192.168.2.27：81 作为phpcas客户端从 192.168.2.27：81 phpcas客户端访问 192.168.26:8081 服务器端程序，返回信息：Warning: DOMDocument::loadXML() [domdocument.loadxml]: Empty string supplied as input in E:\htdocs\php\SSOTest\CAS\domxml-php4-php5.php on line 42Notice: Trying to get property of non-object in E:\htdocs\php\SSOTest\CAS\domxml-php4-php5.php on line 195CAS Authentication failed!
You were not authenticated.You may submit your request again by clicking here.If the problem persists, you may contact the administrator of this site.
不出问题的配置（1台电脑，既做服务，又做应用）：192.168.2.27：80 做cas服务，192.168.2.27：81做客户端，访问就没有问题。。
DOMDocument::loadXML()需要提供一个xml串做参数.
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