Cleaned up code - some adjustments to selected files

The following adjustments were made:
- Files should end with a newline (PHP:S113)
- Control structures should use curly braces (PHP:S121)
- Sections of code should not be commented out (PHP:S125)
- Redundant pairs of parentheses should be removed (PHP:1110)
- Mergeable "if" statements should be combined (PHP:S1066)
- Empty statements should be removed (PHP:S1116)
- Modifiers should be declared in the correct order (PHP:S1124)
- Boolean literals should not be redundant (PHP:S1125)
- Lines should not end with trailing whitespaces (PHP:S1131)
- Use empty() to check whether the array is empty or not (PHP:S1155)
- Unused local variables should be removed (PHP:S1481)
- Identical expressions should not be used on both sides of a binary
operator (PHP:S1764)
- PHP keywords and constants "true", "false", "null" should be lower
case (PHP:S1781)
- Method visibility should be explicitly declared (PHP:S1784)
- "elseif" keyword should be used in place of "else if" keywords
(PHP:S1793)
- "&&" and "||" should be used (PHP:S2010)

Author: DanProgs

lib/ajax/gettprojectnodes.php

@@ -50,7 +50,7 @@
  * @param database $dbHandler
  * @param int $root_node
  * @param int $parent
- * @param  $filter_node
+ * @param string $filter_node
  * @param string $tcprefix
  * @param number $show_tcases
  * @param string $operation

lib/functions/assignment_mgr.class.php

@@ -31,7 +31,7 @@ function __construct(&$db)
   /**
    *
    * @param string $key_field contains the filename that has to be used as the key of the returned hash.
-   * @return unknown
+   * @return array 
    */
   public function get_available_types($key_field='description')
   {
@@ -48,9 +48,9 @@ public function get_available_types($key_field='description')
   /**
    *
    * @param string $key_field contains the name column that has to be used as the key of the returned hash.
-   * @return unknown
+   * @return array 
    */
-  function get_available_status($key_field='description')
+  public function get_available_status($key_field='description')
   {
     static $hash_types;
     if (!$hash_types)