页面内容中的Joomla PHP错误

时间:2012-03-11 15:28:10

标签: php joomla warnings

警告:参数3 showBlogSection()应该是一个参考,在第100行/home/smartsta/public_html/includes/Cache/Lite/Function.php中给出的值

我在Joomla网站上的内容区域突然显示上述错误,有任何建议吗?

更新: 没有幸运能够在godaddy ftp文件目录,ftp或Joomal C-panel中找到对定义文件和目录的访问权限。 在FTP中,我无法访问此特定文件来调查第100行的内容。 在Joomla面板中,在Global Configurations中,我能够将“错误消息”切换为无,因为至少要隐藏此错误。在缓存目录中,虽然显示,但我没有看到进入该文件夹的任何选项。 我也在c-panel屏幕的底部看到这个,但只是链接到一个joomla帮助网站,在字段内我没有看到描述区域切换'开或关' “以下PHP服务器设置不是最佳安全性,建议更改它们: PHP register_globals设置为ON而不是OFF

UPDATE2:<!/强>

我发现有问题的文件,下面是代码。第100行只说明:

global $$ object_123456789;

application / x-httpd-php Function.php PHP脚本文本

<?php

/**
* This class extends Cache_Lite and can be used to cache the result and output of functions/methods
*
* This class is completly inspired from Sebastian Bergmann's
* PEAR/Cache_Function class. This is only an adaptation to
* Cache_Lite
*
* There are some examples in the 'docs/examples' file
* Technical choices are described in the 'docs/technical' file
*
* @package Cache_Lite
* @version $Id: Function.php 47 2005-09-15 02:55:27Z rhuk $
* @author Sebastian BERGMANN <sb@sebastian-bergmann.de>
* @author Fabien MARTY <fab@php.net>
*/

// no direct access
defined( '_VALID_MOS' ) or die( 'Restricted access' );

require_once( $mosConfig_absolute_path . '/includes/Cache/Lite.php' );

class Cache_Lite_Function extends Cache_Lite
{

    // --- Private properties ---

    /**
    * Default cache group for function caching
    *
    * @var string $_defaultGroup
    */
    var $_defaultGroup = 'Cache_Lite_Function';

    // --- Public methods ----

    /**
    * Constructor
    *
    * $options is an assoc. To have a look at availables options,
    * see the constructor of the Cache_Lite class in 'Cache_Lite.php'
    *
    * Comparing to Cache_Lite constructor, there is another option :
    * $options = array(
    *    (...) see Cache_Lite constructor
    *    'defaultGroup' => default cache group for function caching (string)
    * );
    *
    * @param array $options options
    * @access public
    */
    function Cache_Lite_Function($options = array(NULL))
    {
        if (isset($options['defaultGroup'])) {
            $this->_defaultGroup = $options['defaultGroup'];
        }
        $this->Cache_Lite($options);
    }

    /**
    * Calls a cacheable function or method (or not if there is already a cache for it)
    *
    * Arguments of this method are read with func_get_args. So it doesn't appear
    * in the function definition. Synopsis :
    * call('functionName', $arg1, $arg2, ...)
    * (arg1, arg2... are arguments of 'functionName')
    *
    * @return mixed result of the function/method
    * @access public
    */
    function call()
    {
        $arguments = func_get_args();
        $id = serialize($arguments); // Generate a cache id
        if (!$this->_fileNameProtection) {
            $id = md5($id);
            // if fileNameProtection is set to false, then the id has to be hashed
            // because it's a very bad file name in most cases
        }
        $data = $this->get($id, $this->_defaultGroup);
        if ($data !== false) {
            $array = unserialize($data);
            $output = $array['output'];
            $result = $array['result'];
        } else {
            ob_start();
            ob_implicit_flush(false);
            $target = array_shift($arguments);
            if (strstr($target, '::')) { // classname::staticMethod
                list($class, $method) = explode('::', $target);
                $result = call_user_func_array(array($class, $method), $arguments);
            } else if (strstr($target, '->')) { // object->method
                // use a stupid name ($objet_123456789 because) of problems when the object
                // name is the same as this var name
                list($object_123456789, $method) = explode('->', $target);
                global $$object_123456789;
                $result = call_user_func_array(array($$object_123456789, $method), $arguments);
            } else { // function
                $result = call_user_func_array($target, $arguments);
            }
            $output = ob_get_contents();
            ob_end_clean();
            $array['output'] = $output;
            $array['result'] = $result;
            $this->save(serialize($array), $id, $this->_defaultGroup);
        }
        echo($output);
        return $result;
    }

}

?>

1 个答案:

答案 0 :(得分:7)

这不是一个错误。这是警告

突然?也许您已升级/更新了PHP版本。或者将PHP配置更改为“严格模式”。

消息“预期为参考,给定值”表示预期接收参考的被叫函数,而不是。看:

$something = 9;
show_section($something);
// here you are passing a variable
// this will be accepted as a reference

show_section(9);
// here you are NOT passing a reference
// here you are passing a VALUE

当您通过“引用”时,该函数可以更改上例中的变量值...

function show_section(&$parameter) {
    $parameter = 'changed!';
}
  1. 请注意&之前的&符号$parameter - 这是我们指定函数需要参考的方式。

  2. 在函数调用之后,在上面的示例中,变量$something值将是changed!字符串。


  3. 抛出错误的行不是“全局”行。这是下一个:

    $result = call_user_func_array(array($$object_123456789, $method), $arguments);
    

    这里的问题是使用“call_user_func_array”函数间接调用该函数。

    解决方案是将所有参数转换为引用。建议:

    foreach ($arguments as $count => $value)
    {
        $param = 'param' . $count;
        $$param = $value;
        $arguments[$count] = &$$param;
    }
    

    将上面的代码放在call函数的开头,右边的放在以下行:

    $id = serialize($arguments);
    

    试一试!