包括，全局和类都在一个？ [英] include, globals and classes all in one?

问题描述

这里的交易是：

我有一个config.php文件，其中我设置了一些var'' ，用于

整个网站。例如：


$ db_host =" localhost" ;;


然后我还有一个类，应该处理所有数据库

函数。在这个课程中，我尝试从我的配置文件中恢复var'，
但是这似乎不起作用。我试着在构造函数和普通函数中放入以下

语句，但var的

输出总是空的。


include（" config.php"）;

global $ db_host;

echo" db_host的值："。$ db_host;


现在，我有点怀疑它可能与我正在使用课程的事实有关，但我不知道怎么了。通常我应该

能够使用config.php文件中的值，对吗？


greetz

< T ！M>又名wEEdpEckEr

Hi,

here''s the deal:
I have a config.php file in which I have set a few var''s, to use in the
whole site. E.g.:

$db_host = "localhost";

Then I also have a class, which is supposed to handle all database
functions. In this class I try to recover the var''s from my config file,
but this just doesn''t seem to work. I tried to put the following
statements in the constructor as well as in a plain function, but the
output of the var is always empty.

include("config.php");
global $db_host;
echo "value of db_host: ".$db_host;

Now, I have a slight suspicion that it might have to do with the fact
that I''m using classes, but I don''t know what''s wrong. Normally I should
be able to use the values from the config.php file, right?

greetz
<T!M> aka wEEdpEckEr

推荐答案

db_host =" localhost" ;;


然后我也有一个班级，应该处理所有数据库

函数。在这个课程中，我尝试从我的配置文件中恢复var'，
但是这似乎不起作用。我试着在构造函数和普通函数中放入以下

语句，但var的

输出总是空的。


include（" config.php"）;

global

db_host = "localhost";

Then I also have a class, which is supposed to handle all database
functions. In this class I try to recover the var''s from my config file,
but this just doesn''t seem to work. I tried to put the following
statements in the constructor as well as in a plain function, but the
output of the var is always empty.

include("config.php");
global

db_host;

echo" value db_host："。

db_host;
echo "value of db_host: ".

db_host;


现在，我有点怀疑它可能与事实有关

我正在上课，但我不知道什么是错的。通常我应该

能够使用config.php文件中的值，对吗？


greetz

< T ！M>又名wEEdpEckEr

db_host;

Now, I have a slight suspicion that it might have to do with the fact
that I''m using classes, but I don''t know what''s wrong. Normally I should
be able to use the values from the config.php file, right?

greetz
<T!M> aka wEEdpEckEr

这篇关于包括，全局和类都在一个？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！