Description:
------------
When calling a wsdl function, with invalid/missing parameters, SoapClient triggers  a fatal error, and kills the script, instead of throwing a exception.

Test script:
---------------
	echo "start " . phpversion() . "</br>";
	try
	{
		$a = new SoapClient($url, array("exceptions" => true));
	}
	catch(SoapFault $e)
	{
		echo "soapFault {$e->getMessage()}</br>";
	}
	try
	{
		$a->runReport(["userID" => $user, "password" =>  $pass]);
	}
	catch(soapFault $e)
	{
		echo "soapFault: {$e->getMessage()}</br>";
	}
	echo "end\n";

Expected result:
----------------
start 7.1.1
soapFault: SOAP-ERROR: Encoding: object has no 'reportRequest' property
end

Actual result:
--------------
PHP Fatal error:  SOAP-ERROR: Encoding: object has no 'reportRequest' property