Obtener la tasa de cambio representativa del mercado para Colombia con PHP

TrmSoapClient.php

<?php

$date = date("Y-m-d");

try {
	$soap = new soapclient("https://www.superfinanciera.gov.co/SuperfinancieraWebServiceTRM/TCRMServicesWebService/TCRMServicesWebService?WSDL", array(
		'soap_version'   => SOAP_1_1,
		'trace' => 1,
		"location" => "http://www.superfinanciera.gov.co/SuperfinancieraWebServiceTRM/TCRMServicesWebService/TCRMServicesWebService",
	));
	$response = $soap->queryTCRM(array('tcrmQueryAssociatedDate' => $date));
	$response = $response->return;
	if($response->success){
		echo $response->value;
	}
} catch(Exception $e){
	echo $e->getMessage();
}
?>

Yo también hago la misma pregunta

Agradecido, maestro!