finish #64

geoapi/database/SqlManager.php

@@ -74,15 +74,15 @@ abstract class SqlManager {
      * Default-DEConstructor
      */
     public function __destruct() {
+        
+        // close connection
         $this->closeConnection();
+        
+        // delete connection parameter
         unset($this->serverAddress);
         unset($this->dbName);
         unset($this->userName);
         unset($this->userPW);
-        $this->serverAddress = null;
-        $this->dbName = null;
-        $this->userName = null;
-        $this->userPW = null;
     }
 
     /**
@@ -116,17 +116,24 @@ abstract class SqlManager {
      * @return result[num][assoc]
      */
     protected function query($query) {
+        
+        // send error
         $mysqlResult = mysql_query($query, $this->link);
         if (!$mysqlResult) {
             exit("Query error: " . mysql_error());
         }
+        
+        // fetch result
         $rowNums = mysql_num_rows($mysqlResult);
         $result = array();
         for ($i = 0; $i < $rowNums; $i++) {
             $row = mysql_fetch_assoc($mysqlResult);
             $result[$i] = $row;
         }
+        
+        // call gc
         mysql_free_result($mysqlResult);
+        
         return $result;
     }
 }