xmlrpc_encode

描述

string xmlrpc_encode ( mixed value )

警告

本函数是实验性的。本函数的行为，包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。

警告

本函数暂无文档，仅有参数列表。

add a note User Contributed Notes

08-Jun-2006 10:32


Another quirk (more of a bug i think) is the automatic encoding of hashes where all keys that begin with a digit between 1 and 9 are lost:

http://bugs.php.net/bug.php?id=37746



Luckily I found a quick workaround. Just append chr(0x00) to your keys and the xmlrpc response will be correct. Maybe this will apply to encoding of hashes for requests too.

Amir.LaherATcomplinetDOTcom
26-Aug-2005 04:54


Beware this quirk: when you xmlrpc_encode a hash into xmlrpc, numeric keys will not be kept. Even strings containing numbers-only will be lost.



i.e.: xmlrpc_decode(xmlrpc_encode(array('123'=>456)));

returns: array(0=>456);



Apparently this is intentional functionality (see http://bugs.php.net/bug.php?id=21949)



2 workarounds: 

1. prepend/append a string (even whitespace) to all keys, and strip them out at the other end. eg array('key_123'=>456);

2. create an array of hashes. array(array('key'=>123,'value'=>456));



I favour the second option because it's more deliberate.



... this also applies to xmlrpc_encode_request()

hfuecks at pinkgoblin dot com
15-Aug-2002 11:16


This function would be used by an XML-RPC server to convert PHP variables into an XML-RPC response.



It would be used within the PHP functions defined using xmlrpc_server_register_method()



Uses PHP variable reflection to assign the correct data types for the XML-RPC response. For example;



<?php

$params = array ( "one"=>"red","two"=>"blue","three"=>"green" );



$response = xmlrpc_encode ( $params );



echo ( $response );

?>



Produces;



<?xml version='1.0' encoding="utf-8" ?>

<params>

<param>

 <value>

  <struct>

   <member>

    <name>one</name>

    <value>

     <string>red</string>

    </value>

   </member>

   <member>

    <name>two</name>

    <value>

     <string>blue</string>

    </value>

   </member>

   <member>

    <name>three</name>

    <value>

     <string>green</string>

    </value>

   </member>

  </struct>

 </value>

</param>

</params>



While

<?php

$params = array ( "red", "blue", "green" );



$response = xmlrpc_encode ( $params );



echo ( $response );

?>



produces;



<?xml version='1.0' encoding="utf-8" ?>

<params>

<param>

 <value>

  <array>

   <data>

    <value>

     <string>red</string>

    </value>

    <value>

     <string>blue</string>

    </value>

    <value>

     <string>green</string>

    </value>

   </data>

  </array>

 </value>

</param>

</params>



And 



<?php

$params = 1;



$response = xmlrpc_encode ( $params );



echo ( $response );

?>



produces



<?xml version='1.0' encoding="utf-8" ?>

<params>

<param>

 <value>

  <int>1</int>

 </value>

</param>

</params>



It's useful to be aware of the settype() function (http://www.php.net/settype).



For binary base64 data and XML-RPC iso8601 date times the xmlrpc_set_type() function should be used on a PHP variable before using xmlrpc_encode()

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