$url = "http://localhost/api/";

	$post_string = '<?xml version="1.0" encoding="UTF-8"encoding="UTF-8"?>
	<request>
		<authentication>
			<api_id>EB4RTDHWE5F18BDC8ZJ3</api_id>
			<secret_key>FLIDRBM9S8E8PP9DZ9T319HC8WQCTUSINFFKJ7W3</secret_key>
		</authentication>
		<type>CancelRecurring</type>
		<recurring_id>188</recurring_id>
	</request>';

	$postfields = $post_string; 

	$ch = curl_init();
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); 
	curl_setopt($ch, CURLOPT_URL,$url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_TIMEOUT, 60);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields); 


	$data = curl_exec($ch); 

	if(curl_errno($ch))
	{
	    print curl_error($ch);
	}
	else
	{
		curl_close($ch);
	    echo $data;
	}