discover() public method Performs Yadis and HTML discovery

sendRequest() protected method Sends request to the server

validateRequiredAttributes() protected method Checks if

fetchAxAttributes() protected method Gets AX attributes

$capath public property Directory that holds multiple CA certificates

$returnUrl public property Authentication return URL.

setReturnUrl() public method

$axToSregMap public property Map of matches between AX and SREG

getReturnUrl() public method

init() public method Initializes the object.