是否需要使用目录分隔符常量? [英] Is using the directory separator constant necessary?

问题描述

我正在使用PHP，但是我猜这个问题可能与语言无关.

对于PHP，常量由PHP定义，称为DIRECTORY_SEPARATOR.我已经在Joomla中看到了

define('DS', DIRECTORY_SEPARATOR);

我认为这似乎是个好主意，因此将其合并到我的一些网站中.现在我问自己为什么.我只有Windows和OS X的经验，据我所知，Microsoft，Linux和Apple都使用正斜杠作为目录分隔符.

使用此常量是否不必要?

解决方案

例如，Mac OS Classic使用:".有关详细信息，请参见 Wikipedia .避免使用魔术数字"或类似的构造也被认为是很好的样式.

I am using PHP, but I guess this question might be language agnostic.

With PHP, a constant is defined by PHP, called DIRECTORY_SEPARATOR. I have seen this in Joomla

define('DS', DIRECTORY_SEPARATOR);

I thought this looked like a good idea so I incorporated it into some of my sites. Now I'm asking myself why. I have only experience on Windows and OS X and from what I know Microsoft, Linux and Apple all use the forward slash as the directory separator.

Is using this constant unnecessary?

解决方案

Mac OS Classic uses ":", for instance. See Wikipedia for details. Also it's considered good style avoiding 'magic numbers' or similar constructs.

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