CodeIgniter - 获取错误消息 [英] CodeIgniter - get error messages

问题描述

我通过更改config.php中的行创建了自己的自定义错误页面

I created my own custom error page by changing the line in config.php

$route['404_override'] = 'main/_404';

现在它加载正确的页面，通过在我的控制器中加载_404函数

So now it loads the correct page, by loading the _404 function in my controller

问题是，我仍然希望能够获得$ heading& $ message错误变量显示在默认页面，显示为：

The issue is, I still want to be able to get a hold of the $heading & $message error variables displayed in the default page, which show up as:

<div id="container">
    <h1><?php echo $heading; ?></h1>
    <?php echo $message; ?>
</div>

这是我的_404函数，如果任何人都可以给我一些建议如何添加这些变量我会非常感谢

Here's my _404 function if anyone can give me some advice how to add those variables I would greatly appreciate it

public function _404() {
        $data['query'] = array('title' => 'Page not found.', 'keywords' => '', 'description' => 'Page not found', 'page' => 'error');


        $this->load->view('parts/head',$data);
        $this->load->view('parts/_404');// <- would go here
        $this->load->view('parts/footer');
    }

推荐答案

：

1）在重新路由的404网页中，您应该可以定期传递任何您想要的变数，让您只需 $ this - > load-> view（'parts / _404'，$ data）; ，并有可用的变量。

1) In your re-routed 404 page, you should be able to pass regularly any variable you want, so you can simply $this->load->view('parts/_404',$data); and have there available your variables.

如果你正在谈论默认404页面，记住它不能在某些情况下被覆盖，也就是当调用 show_404（）核心函数时：

2) if you're talking about the default 404 page, keep in mind that it can't be overridden under certain circustamces, that is when the show_404() core function is called:

它不会影响show_404（）函数，这将继续
加载默认的error_404.php文件
application / errors / error_404.php。

It won't affect to the show_404() function, which will continue loading the default error_404.php file at application/errors/error_404.php.

此函数属于异常处理程序类。实际上，在90行你有

This function belongs to the Exception handler class. There, in fact, at line 90 you have

function show_404($page = '', $log_error = TRUE)
    {
        $heading = "404 Page Not Found";
        $message = "The page you requested was not found.";

        // By default we log this, but allow a dev to skip it
        if ($log_error)
        {
            log_message('error', '404 Page Not Found --> '.$page);
        }

        echo $this->show_error($heading, $message, 'error_404', 404);
        exit;
    }

，然后调用 show_error code>方法设置标头错误代码（第四个参数）并添加指定的视图（第三个参数） 。

which in turn calls the show_error() method wich sets the header error code (4th argument) and adds the specified view (3rd argument) to the view buffer.

正如你所看到的，消息在这里被硬编码在方法中。如果您想要进行总体自定义，您可以覆盖此方法（例如，调用同一类中的另一个函数）或者简单地硬编码其他消息。

As you can see messages are here hardcoded inside the method. If you want a total customization you can either override this method (make it, for example, call another function within the same class) or simply hardcode other message there instead.

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