diff --git a/model/MongoDbCommand.php b/model/MongoDbCommand.php
index c82c430..c746e71 100644
--- a/model/MongoDbCommand.php
+++ b/model/MongoDbCommand.php
@@ -58,14 +58,22 @@ abstract class MongoDbCommand
         return $this;
     }
 
+    protected function arrayToString($array)
+    {
+        $string =  '[';
+        if(!empty($array)) {
+            $string .= PHP_EOL;
+        }
+        foreach($array as $key => $value) {
+            $string .= "\t" . $key . ' = ' . $value . PHP_EOL;
+        }
+        $string .= ']' . PHP_EOL;
+        return $string;
+    }
+
     abstract protected function concreteExecute();
 
     abstract protected function checkParams();
-
-    /**
-     * @TODO: implement method in subclasses for Profiler
-     */
-    abstract public function __toString();
 }
 
 class FindMongoCommand extends MongoDbCommand
@@ -98,15 +106,9 @@ class FindMongoCommand extends MongoDbCommand
     {
         if ($this->checkParams()) {
             $result = PHP_EOL . 'Collection: ' . $this->collection . PHP_EOL;
-            ob_start();
-            var_dump($this->condition);
-            $condition = ob_get_clean();
-            $result .= 'Condition: ' . $condition;
+            $result .= 'Condition: '  . $this->arrayToString($this->condition);
             $result .= 'Type: FIND' . PHP_EOL;
-            ob_start();
-            var_dump($this->fields);
-            $fields = ob_get_clean();
-            $result .= 'Fields: ' . $fields . PHP_EOL;
+            $result .= 'Fields: ' . $this->arrayToString($this->fields);
             $mult = $this->multiple ? 'TRUE' : 'FALSE';
             $result .= 'Multiple fields: ' . $mult . PHP_EOL;
             return $result;
@@ -145,10 +147,7 @@ class CountMongoCommand extends MongoDbCommand
         if ($this->checkParams()) {
             $result = PHP_EOL . 'Collection: ' . $this->collection . PHP_EOL;
             $result .= 'Type: COUNT' . PHP_EOL;
-            ob_start();
-            var_dump($this->condition);
-            $condition = ob_get_clean();
-            $result .= 'Condition: ' . $condition;
+            $result .= 'Condition: ' . $this->arrayToString($this->condition);
             $result .= 'Limit: ' . $this->limit . PHP_EOL;
             $result .= 'Skip: ' . $this->skip . PHP_EOL;
             return $result;
@@ -201,10 +200,7 @@ class InsertMongoCommand extends MongoDbCommand
         if ($this->checkParams()) {
             $result = PHP_EOL . 'Collection: ' . $this->collection . PHP_EOL;
             $result .= 'Type: INSERT' . PHP_EOL;
-            ob_start();
-            var_dump($this->data);
-            $data = ob_get_clean();
-            $result .= 'Data: ' . $data;
+            $result .= 'Data: ' . $this->arrayToString($this->data);
             $mult = $this->multiple ? 'TRUE' : 'FALSE';
             $result .= 'Bulk insert: ' . $mult . PHP_EOL;
             $safe = $this->safe ? 'TRUE' : 'FALSE';
@@ -250,14 +246,8 @@ class UpdateMongoCommand extends MongoDbCommand
         if ($this->checkParams()) {
             $result = PHP_EOL . 'Collection: ' . $this->collection . PHP_EOL;
             $result .= 'Type: UPDATE' . PHP_EOL;
-            ob_start();
-            var_dump($this->condition);
-            $condition = ob_get_clean();
-            $result .= 'Condition: ' . $condition;
-            ob_start();
-            var_dump($this->data);
-            $data = ob_get_clean();
-            $result .= 'Data: ' . $data;
+            $result .= 'Condition: ' . $this->arrayToString($this->condition);
+            $result .= 'Data: ' . $this->arrayToString($this->data);
             $mult = $this->multiple ? 'TRUE' : 'FALSE';
             $result .= 'Multiple fields: ' . $mult . PHP_EOL;
             $upsert = $this->upsert ? 'TRUE' : 'FALSE';
@@ -296,10 +286,7 @@ class RemoveMongoCommand extends MongoDbCommand
         if ($this->checkParams()) {
             $result = PHP_EOL . 'Collection: ' . $this->collection . PHP_EOL;
             $result .= 'Type: REMOVE' . PHP_EOL;
-            ob_start();
-            var_dump($this->condition);
-            $condition = ob_get_clean();
-            $result .= 'Condition: ' . $condition;
+            $result .= 'Condition: ' . $this->arrayToString($this->condition);
             $safe = $this->safe ? 'TRUE' : 'FALSE';
             $result .= 'Safe operation: ' . $safe . PHP_EOL;
             return $result;
@@ -337,10 +324,7 @@ class CommandMongoCommand extends MongoDbCommand
         if ($this->checkParams()) {
             $result = PHP_EOL . 'Collection: ' . $this->collection . PHP_EOL;
             $result .= 'Type: COMMAND' . PHP_EOL;
-            ob_start();
-            var_dump($this->command);
-            $command = ob_get_clean();
-            $result .= 'Command: ' . $command;
+            $result .= 'Command: ' . $this->arrayToString($this->command);
             return $result;
         } else {
             return 'Command properties not set';
diff --git a/tests/model/MongoDbCommandTest.php b/tests/model/MongoDbCommandTest.php
index c8d01fd..6cf2e1e 100644
--- a/tests/model/MongoDbCommandTest.php
+++ b/tests/model/MongoDbCommandTest.php
@@ -334,6 +334,7 @@ class MongoDbCommandTest extends PHPUnit_Framework_TestCase
         $cmd = MongoCommandBuilder::factory(MongoCommandBuilder::FIND, new CollectionMock());
         $cmd->bindParam('condition', array());
         $this->assertStringStartsWith("\n" . 'Collection: CollectionMock', $cmd->__toString());
+        $this->assertContains('Condition: ' . '[]' . PHP_EOL, $cmd->__toString());
 
         $cmd = MongoCommandBuilder::factory(MongoCommandBuilder::COMMAND, new CollectionMock());
         $this->assertSame('Command properties not set', $cmd->__toString());
@@ -347,6 +348,7 @@ class MongoDbCommandTest extends PHPUnit_Framework_TestCase
                 ->bindParam('safe', true);
         $this->assertStringStartsWith("\n" . 'Collection: ', $cmd->__toString());
         $this->assertContains('Bulk insert: FALSE', $cmd->__toString());
+        $this->assertContains('Data: ' . '[' . PHP_EOL . "\tname = insert" . PHP_EOL . ']' . PHP_EOL, $cmd->__toString());
 
         $cmd = MongoCommandBuilder::factory(MongoCommandBuilder::INSERT, $this->collection);
         $this->assertSame('Command properties not set', $cmd->__toString());