php-php How do third-party logins curl? Soap?

Soapphpcurl

Dear God, the leader requires a third-party login. Guest
The user has given the address, their demo page access address is as follows: Http://www.*********.com/secure demo
There is a user name and password on the page, and the action= "Idp/authn/userpassword" return value array submitted by Form form is user-designed.
What should I do to access the client's server on my page? With soap? Curl I do not understand ah, anxious wait. In addition I used soap to try the next address for the HTTP://WWW.WEBSERVICEX.NET/GLOBALWEATHER.ASMX?WSDL test has the return data. For the http://www.*********.com/secure of our address there is no return data, why do third-party servers need to configure what? Most of the code is ~~~~~~
I have no gold coins to reward, and the gods should help the new men.

