CodeIgniter：如何知道$ this-> load-> database（）;没有连接？ [英] CodeIgniter: How to know if $this->load->database(); did connect?

问题描述

如果我将CI应用程序配置为使用数据库进行会话处理，则如果会话用户数据返回false，则可以假设用户的会话已过期。

If I configure my CI application to use database for session handling, if a session userdata returns false, I can assume that the user's session has expired.

如果返回false的实际原因是因为数据库连接未成功建立？

But what if the actual reason that it returned false was because the database connection was not established successfully?

推荐答案

默认情况下CodeIgniter会致命错误if数据库加载无法连接，但如果您有：

By default CodeIgniter will fatal error if the database is loaded and cannot connect, but if you have:

$db['local']['db_debug'] = FALSE;

那么它不会告诉你。您可以在一般情况下关闭调试功能，但仍然会对失败的负载做出反应：

then it won't tell you. You can turn debugging off in general but still react to a failed load by doing this:

if ( $this->load->database() === FALSE )
{
   exit('THE END IS NIGH!');
}

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