XML error: Invalid document end at line 1

Under PHP 7 XML-RPC no longer works. You will see this error.
The two reasons:

XML-RPC expects its data in $HTTP_RAW_POST_DATA, which isn't available in PHP 7
in CI_Xmlrpcs::parseRequest() find its usage and get the data from

PHP Code:

file_get_contents("php://input") 


instead.

PHP 7 doesn't understand this no longer:

PHP Code:

$CI->$method_parts['1']($m); 


use

PHP Code:

call_user_func(array($CI, $method_parts[1]), $m); 


instead.

The same probably holds for:

PHP Code:

$this->object->$method_parts['1']($m); 


use

PHP Code:

call_user_func(array($this->object, $method_parts[1]), $m); 


Well, I don't know, whether this is fixed in CI3 ...

Hope this helps.
joergy