Including all the files in a directory

[modelking]

I write a function named import() to import all files under a folder:
[PHP]define('DS', DIRECTORY_SEPARATOR);
define('ROOTDIR', realpath(dirname(__FILE__).DS.'..'.DS));
function import($dir)
{
$dirObj = dir($dir);
if ($dirObj->handle !== false)
{
while (false !== ($entry = $dirObj->read()))
{
if ($entry == '.' || $entry == '..')
{
continue;
}

{
$rtn = include_once($dir.DS.$entry);
print $rtn;
}
}
}
else
{
die('no such directory');
}
$dirObj->close();
}
[/PHP]
Then I put this function into gobal.php which is included in index.php
[PHP]require_once('includes/global.php');
import( ROOTDIR.'config' );
print $db_host;[/PHP]

Under the config folder I hava a file named config.php :
[PHP]$db_host = "localhost";
$db_user = "root";
$db_pwd = "123456";
$db_name = "match";[/PHP]

The problem is it doesn't print "localhost" but nothing.
If i put the code of import() function in index.php direct ,it work successfully.
why? Thank you very much .

[pbmods]

Heya, ModelKing. Welcome to TSDN!

In this line:

define('ROOTDIR', realpath(dirname(__FILE__).DS.'..'.DS));
 

__FILE__ is the path of global.php, not index.php.

[modelking]

Maybe you just mistake what I mean. You can test this code on your machine.ROOTDIR is the path of index.php. And i just care about why my function could not work like what i want. Thank you for your reply.

[phizzle]

modelking,
I believe your problem is actually a scoping issue. Because you make your include inside of a function, all of those variables that you included are scoped into only that function. If you want proof of this, place

global $db_host

at the top of your import function.
I'd hate to disappoint you, but I can't think of a solution to this right now. This best I can think right now is:
in global.php:

      function import($dir)
      {
      $files_to_import = array();
      $dirObj = dir($dir);
      if ($dirObj->handle !== false)
      {
        while (false !== ($entry = $dirObj->read()))
        {
         if ($entry == '.' || $entry == '..')
         {
          continue;
         }
         {
          $files_to_import[] = $dir.DS.$entry;
         }
        }
      }
      else
      {
        die('no such directory');
      }
      $dirObj->close();
      return $files_to_import;
      }
 

and in index.php

      require_once('include/global.php');
      $files = import( ROOTDIR.'/config' );
      foreach($files as $file) {
          include_once($file);
      }
      echo $db_host;
 

But I don't think this is what you are looking for.

Also, I would move your ROOTDIR definition into the index.php, and make it:

define('ROOTDIR', realpath(dirname(__FILE__)));

That way your global is even more global ;).

[modelking]

dear phizzle ,thanks very much for your reply and advice.
I have got what you mean, but I still have problem with this code:
[PHP]
require_once('includes/global.php');
import( ROOTDIR.'config' );
print_r (get_included_files());
print $GLOBALS['db_host'];

function import($dirname)
{
$dirObj = dir($dirname);
$include = array();
if ($dirObj->handle !== false)
{
while (false !== ($entry = $dirObj->read()))
{
if ($entry == '.' || $entry == '..')
{
continue;
}
array_push($include, $dirObj->path.DS.$entry);
}
foreach ($include as $file)
{
$rtn = include_once($file);
print $rtn;
}
}
else
{
die('no such directory');
}
$dirObj->close();
}
[/PHP]

If it is a scoping problem, why the above code print out the include files？ It puzzle me 。

[modelking]

dear phizzle ,I have got your means. Thanks you very much . I just go a wrong way.

[pbmods]

Heya, modelking.

My point was that ROOTDIR was pointing to the wrong directory because it was looking for files relative to global.php instead of index.php.

__FILE__ resolves to the path of the file that *contains* __FILE__, not the path of the script that is being executed.

Were you able to get it working?