PHP包含路径和路径分隔符混淆

Question

I'm trying to get an opensource web application running. Its from here - https://sourceforge.net/projects/labshare-sahara/ It uses the Zend PHP framework.

My problem is with the following bit of code. It fails to find a file, and so it returns false, and the message:

"2012-08-20T00:01:08+02:00 DEBUG (7): Unable to find auth class SAHARANS_Auth_Type_Database in include path"

is outputted to the log file.

---

   private function _loadClass($name)
       {
            /* Find the class to load. */
            $file = implode('/', explode('_', $name)) . '.php';
            foreach (explode(PATH_SEPARATOR, get_include_path()) as $path)
            {
                $this->_logger->debug("does $path/$file exist?"); //I added this
                if (file_exists($path . PATH_SEPARATOR . $file))
                {
                    return new $name();
                }
            }

            $this->_logger->debug("Unable to find auth class $name in include path.");
            return false;
        }

To give a bit more context I got it to print some more information to the log - so it writes to the log each time round the for loop. This is the output:

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\htdocs\Sahara-WI\WI\application/../library/SAHARANS/Auth/Type/Database.php exist?

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\htdocs\Sahara-WI\WI\library/SAHARANS/Auth/Type/Database.php exist?

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\htdocs\Sahara-WI\WI\application\models/SAHARANS/Auth/Type/Database.php exist?

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\htdocs\Sahara-WI\WI\institution/SAHARANS/Auth/Type/Database.php exist?

2012-08-20T00:47:07+02:00 DEBUG (7): does ./SAHARANS/Auth/Type/Database.php exist?

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\php\PEAR/SAHARANS/Auth/Type/Database.php exist?

2012-08-20T00:47:07+02:00 DEBUG (7): Unable to find auth class SAHARANS_Auth_Type_Database in include path

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\htdocs\Sahara-WI\WI\application/../library/Sahara/Auth/Type/Database.php exist?

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\htdocs\Sahara-WI\WI\library/Sahara/Auth/Type/Database.php exist

2012-08-20T00:47:07+02:00 DEBUG (7): does C:\xampp\htdocs\Sahara-WI\WI\application\models/Sahara/Auth/Type/Database.php exist?

Note: Database.php does exist in the models\Sahara\Auth\Type directory!

What immediately seemed strange is the interchange between '/' and '\' in the paths, but trying to force a backlash (I'm using a windows machine) didn't seem to have any affect.

Thanks in advance!

Answer 1

PATH_SEPARATOR is ; on windows, and : on other operating system. It is used to split multiple paths, not (sub)directories and file names.

Change:

if (file_exists($path . PATH_SEPARATOR . $file));

To:

if (file_exists($path . '/' . $file));

This will work everywhere.