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[EDIT] FILE: extra-lines.php

<?php

/**
 * Tests how the XML_RPC server handles parameters with empty values.
 *
 * PHP versions 4 and 5
 *
 * @category   Web Services
 * @package    XML_RPC
 * @author     Daniel Convissor <danielc@php.net>
 * @copyright  2005-2010 The PHP Group
 * @license    http://www.php.net/license/3_01.txt  PHP License
 * @version    SVN: $Id: extra-lines.php 300958 2010-07-02 23:58:51Z danielc $
 * @link       http://pear.php.net/package/XML_RPC
 * @since      File available since Release 1.4.4
 */

/*
 * If the package version number is found in the left hand
 * portion of the if() expression below, that means this file has
 * come from the PEAR installer.  Therefore, let's test the
 * installed version of XML_RPC which should be in the include path.
 *
 * If the version has not been substituted in the if() expression,
 * this file has likely come from a SVN checkout or a .tar file.
 * Therefore, we'll assume the tests should use the version of
 * XML_RPC that has come from there as well.
 */
if ('1.5.5' == '@'.'package_version'.'@') {
    ini_set('include_path', '../'
            . PATH_SEPARATOR . '.' . PATH_SEPARATOR
            . ini_get('include_path')
    );
}
require_once 'XML/RPC.php';

$input = "First lfs\n\nSecond crlfs\r\n\r\nThird crs\r\rFourth line";

$expect_removed = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<methodCall>\r\n<methodName>nada</methodName>\r\n<params>\r\n<param>\r\n<value><string>First lfs\r\nSecond crlfs\r\nThird crs\r\nFourth line</string></value>\r\n</param>\r\n</params>\r\n</methodCall>\r\n";

$expect_not_removed = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<methodCall>\r\n<methodName>nada</methodName>\r\n<params>\r\n<param>\r\n<value><string>First lfs\r\n\r\nSecond crlfs\r\n\r\nThird crs\r\n\r\nFourth line</string></value>\r\n</param>\r\n</params>\r\n</methodCall>\r\n";

$msg = new XML_RPC_Message('nada', array(XML_RPC_encode($input)));
$msg->createPayload();
if ($msg->payload == $expect_removed) {
    echo "passed\n";
} else {
    echo "PROBLEM\n";
}

$msg = new XML_RPC_Message('nada', array(XML_RPC_encode($input)));
$msg->remove_extra_lines = false;
$msg->createPayload();
if ($msg->payload == $expect_not_removed) {
    echo "passed\n";
} else {
    echo "PROBLEM\n";
}

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