Description:
------------
xmlrpc_set_type() returns false on success. By documentation under

http://php.net/manual/en/function.xmlrpc-set-type.php

it should return true on success. This is correct for PHP until 5.6(.13), but no longer correct for PHP 7.


Test script:
---------------
<?php
$params = date("Ymd\TH:i:s", time());
$rv = xmlrpc_set_type($params, 'datetime');
echo "xmlrpc_encode of result:\n";
echo xmlrpc_encode($params);
echo "\nvar_dump of return value:\n";
var_dump($rv);
echo "\nvar_dump of result:\n";
var_dump($params);
?>


Expected result:
----------------
xmlrpc_encode of result:
<?xml version="1.0" encoding="utf-8"?>
<params>
<param>
 <value>
  <dateTime.iso8601>20150918T19:16:44</dateTime.iso8601>
 </value>
</param>
</params>

var_dump of return value:
bool(true)

var_dump of result:
object(stdClass)#1 (3) {
  ["scalar"]=>
  string(17) "20150918T19:16:44"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1442603804)
}


Actual result:
--------------
xmlrpc_encode of result:
<?xml version="1.0" encoding="utf-8"?>
<params>
<param>
 <value>
  <dateTime.iso8601>20150918T19:16:44</dateTime.iso8601>
 </value>
</param>
</params>

var_dump of return value:
bool(false)

var_dump of result:
object(stdClass)#1 (3) {
  ["scalar"]=>
  string(17) "20150918T19:16:44"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1442603804)
}