Segmentation fault when using php to return a directory path in the imce profile settings page

Repeatable: Always
Steps to repeat:

1. visit admin/config/media/imce/profile/edit/
2. in the directory section, set this directory path:
   

   php: return 'images_uploaded_by_users/'.$user->name;
   

3. Save configuration
4. visit imce

Expected Results:
User sees imce file browser.

Actual Results:
The browser says that the connection has been interrupted by the server. Checking in the Apache Error Log showed a segmentation fault

I don't know exactly why, but the problem is caused by the eval in imce_process_directories() function. Anyway, this simple patch to imce.page.inc file solves the problem:

@@ -776,7 +776,8 @@
 
   foreach ($directories as $directory) {
     if (substr($directory['name'], 0, 4) == 'php:') {
-      $directory['name'] = eval(substr($directory['name'], 4));
+      $directory_name = substr($directory['name'], 4);
+      $directory['name'] = eval($directory_name);
      //php may return an array of directories
       if (is_array($directory['name'])) {
         foreach ($directory['name'] as $name) {