“致命错误:无法重新声明类"...但未声明该类

问题描述

(我使用的是 Joomla v1.5.15 和 PHP 5.3.4)

我已经测试了在这个和其他开发者论坛中找到的解决方案，但我仍然遇到同样的错误.

需要文件 => contratolocal.php

<代码>...如果 ( !class_exists('MTIHelperEstadosLocal') )JLoader::import('helpers.estados.estadoslocal', JPATH_COMPONENT, false);类 MTIControllerContratoLocal 扩展了 MTIController{...

所需文件 => estadoslocal.php

<代码>...类 MTIHelperEstadosLocal 扩展 MTIHelperEstados{...

"JLoader::import" 通常在 Joomla 中用于将文件导入到实际脚本中.无论如何，我尝试了include/require_once"php 方法也没有成功.

我尝试过的每个解决方案都出现相同的错误:

致命错误:无法重新声明类 MTIHelperEstadosLocal"

之前没有声明该类，因为我无法在没有导入的情况下使用该类，并且如果我打印get_declared_classes()"php 方法的返回数组，则该类不存在.

怎么回事?

谢谢

已解决.

有两个问题:

1. 在我的项目中，有一些 helper 包含其他文件，其中一个之前完成了 require_once.

2. require_once 不会避免第二个包含，我不得不在条件中对每个 require_once 进行编码:

   <块引用>

   if (!class_exists('MTIHelperEstadosLocal'))

(I'm using Joomla v1.5.15 and PHP 5.3.4)

I have tested the solutions found in this and others developer forums, but I still having the same error.

Requiring file => contratolocal.php

...
if ( !class_exists('MTIHelperEstadosLocal') )
    JLoader::import('helpers.estados.estadoslocal', JPATH_COMPONENT, false);

class MTIControllerContratoLocal extends MTIController
{
...

Required file => estadoslocal.php

...
class MTIHelperEstadosLocal extends MTIHelperEstados
{
...

"JLoader::import" is used normally in Joomla to import files to the actual script. Anyway, I tried "include/require_once" php methods also without success.

I got the same error with every solution that I tried:

"Fatal error: Cannot redeclare class MTIHelperEstadosLocal"

The class is not declarated previously becouse I can't use the class without the import and if I print the returned array of the "get_declared_classes()" php method, this class isn't there.

What going on?

Thanks

Solved.

There were 2 problems:

1. In my project there are some helpers that include other files, and one of them has a require_once previously done.

2. The require_once doesn't avoid the second include, and I had to code every require_once in a condition:

   if ( !class_exists('MTIHelperEstadosLocal') )

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