只有typo3 V4.6及更高版本的核心有listNum = rand，见这个http://forge.typo3.org/issues/16180
对于typo3 V4.5，您必须扩展 tslib/class.tslib_content.php
将此添加到 localconf.php：
$TYPO3_CONF_VARS['FE']['XCLASS']['tslib/class.tslib_content.php'] = PATH_site.'fileadmin/template/class.ux_tslib_content.php';
并将此代码添加到 class.ux_tslib_content.php：
<?php
/***************************************************************
* Copyright notice
*
* (c) 1999-2008 Kasper Skaarhoj (kasperYYYY@typo3.com)
* All rights reserved
*
* This script is part of the TYPO3 project. The TYPO3 project is
* free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* The GNU General Public License can be found at
* http://www.gnu.org/copyleft/gpl.html.
* A copy is found in the textfile GPL.txt and important notices to the license
* from the author is found in LICENSE.txt distributed with these scripts.
*
*
* This script is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/
/**
* Contains classes for Content Rendering based on TypoScript Template configuration
*
* $Id: class.tslib_content.php 4254 2008-09-27 13:35:44Z dmitry $
* Revised for TYPO3 3.6 June/2003 by Kasper Skaarhoj
* XHTML compliant
*
* class tslib_cObj : All main TypoScript features, rendering of content objects (cObjects). This class is the backbone of TypoScript Template rendering.
*
* @author Kasper Skaarhoj <kasperYYYY@typo3.com>
*/
/**
* This class contains all main TypoScript features.
* This includes the rendering of TypoScript content objects (cObjects).
* Is the backbone of TypoScript Template rendering.
*
* There are lots of functions you can use from your include-scripts.
* The class "tslib_cObj" is normally instantiated and referred to as "cObj".
* When you call your own PHP-code typically through a USER or USER_INT cObject then it is this class that instantiates the object and calls the main method. Before it does so it will set (if you are using classes) a reference to itself in the internal variable "cObj" of the object. Thus you can access all functions and data from this class by $this->cObj->... from within you classes written to be USER or USER_INT content objects.
*
* @author Kasper Skaarhoj <kasperYYYY@typo3.com>
* @package TYPO3
* @subpackage tslib
* @link http://typo3.org/doc.0.html?&tx_extrepmgm_pi1[extUid]=270&cHash=4ad9d7acb4
*/
class ux_tslib_cObj extends tslib_cObj{
/**
* Exploding a string by the $char value (if integer its an ASCII value) and returning index $listNum
*
* @param string String to explode
* @param string Index-number. You can place the word "last" in it and it will be substituted with the pointer to the last value. You can use math operators like "+-/*" (passed to calc())
* @param string Either a string used to explode the content string or an integer value which will then be changed into a character, eg. "10" for a linebreak char.
* @return string
*/
function listNum($content,$listNum,$char) {
$char = $char ? $char : ',';
if (t3lib_div::testInt($char)) {
$char = chr($char);
}
$temp = explode($char,$content);
$last = ''.(count($temp)-1);
if($listNum === 'rand'){ $listNum = rand(0,count($temp)-1);} //taywa added: rand feature!
$index=$this->calc(str_ireplace('last',$last,$listNum));
return $temp[$index];
}
}
?>