PHP检测(或删除)当前驱动器号? [英] PHP detect (or remove) current drive letter?

问题描述

我正在尝试为PHP寻找一种方法来检测我的应用程序所在的USB的驱动器号，但是我没有任何运气.

I'm trying to find a way for PHP to detect the drive letter of the USB my app is on, but I'm not having any luck.

我正在制作一个与我从Portableapps.com安装的应用程序并驾齐驱的桌面.主桌面和所有应用程序都在USB驱动器上； PHP文件存储在USB版本的xampp中.

I'm making a desktop which goes hand in hand with the apps I installed from portableapps.com. The main desktop and all the apps are on a USB drive; the PHP files are stored in the USB version of xampp.

当前，我有一个条件语句，如果我要单击其中一个便携式应用程序的桌面图标，它将附加?app = APPNAME"，然后由条件语句拾取并打开该应用程序.

Currently I have a conditional statement set up where if I was to click a desktop icon for one of the portable apps, it would append "?app=APPNAME" which would then be picked up by the conditional and open the app.

<?php 
$app = $_GET['app'];

if ($app == 'pidgin') {
 $addr = "E:/PortableApps/PidginPortable/PidginPortable.exe";
 exec ($addr,$output, $return);
} 
?>

我希望能够将此驱动器插入任何计算机，而不会在打开应用程序时遇到问题，所以有没有办法删除文件位置中的E:/并仍然将其打开，或者至少有一种方法检测USB使用的驱动器号，并根据检测到的内容更改我的代码部分?

I want to be able to plug this drive into any computer and not run into problems opening the apps, so is there a way to remove the E:/ in the file location and still have them open or at least a way to detect what drive letter the USB is using and change that part of my code based on what it detects?

推荐答案

您也许可以从__FILE__

You may be able to parse it from the __FILE__ magic constant. I don't have any Windows computer, but I guess it will be the first character. So this may work:

$drive = substr(__FILE__, 0, 1);

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