Codeigniter 显示空白页而不是错误消息 [英] Codeigniter displays a blank page instead of error messages

问题描述

我正在使用 Codeigniter，但我得到的不是错误消息，而是一个空白页面.有什么办法可以显示 PHP 错误消息吗?没有反馈就很难调试.

I'm using Codeigniter, and instead of error messages I'm just getting a blank page. Is there any way to show PHP error messages instead? It's very hard to debug when I get no feedback.

我的环境是 Ubuntu 和 Apache.

My environment is Ubuntu with Apache.

推荐答案

由于目前为止所有解决方案似乎都不适合您，请尝试以下解决方案:

Since none of the solutions seem to be working for you so far, try this one:

ini_set('display_errors', 1);

http://www.php.net/手册/en/errorfunc.configuration.php#ini.display-errors

这明确告诉 PHP 显示错误.某些环境可以默认禁用此功能.

This explicitly tells PHP to display the errors. Some environments can have this disabled by default.

这是我在 index.php 中的环境设置:

This is what my environment settings look like in index.php:

/*
 *---------------------------------------------------------------
 * APPLICATION ENVIRONMENT
 *---------------------------------------------------------------
 */
define('ENVIRONMENT', 'development');
/*
 *---------------------------------------------------------------
 * ERROR REPORTING
 *---------------------------------------------------------------
 */
if (defined('ENVIRONMENT'))
{
    switch (ENVIRONMENT)
    {
        case 'development':
            // Report all errors
            error_reporting(E_ALL);

            // Display errors in output
            ini_set('display_errors', 1);
        break;

        case 'testing':
        case 'production':
            // Report all errors except E_NOTICE
            // This is the default value set in php.ini
            error_reporting(E_ALL ^ E_NOTICE);

            // Don't display errors (they can still be logged)
            ini_set('display_errors', 0);
        break;

        default:
            exit('The application environment is not set correctly.');
    }
}

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