diff --git a/JSObject.php b/JSObject.php
index cc0a893..ae59ca9 100644
--- a/JSObject.php
+++ b/JSObject.php
@@ -30,6 +30,8 @@ class JSObject extends ArrayObject {
 	
 		foreach($params as $name => &$val)
 		{
+			if (empty($val)) continue;
+		
 			// Bind '$this' for closures
 			if ($val instanceof Closure)
 			{
@@ -52,11 +54,34 @@ class JSObject extends ArrayObject {
 	 */
 	public function __call($name, $params = [])
 	{
+		$function_blacklist = [
+			'array_change_key_case',
+			'array_combine',
+			'array_count_values',
+			'array_fill_keys',
+			'array_fill',
+			'array_key_exists',
+			'array_map',
+			'array_merge',
+			'array_merge_recursive',
+			'array_search',
+			'array_unshift',
+		];
+	
 		// Allow array operations on the object
-		if (substr($name, 0, 6) === 'array_' && is_callable($name))
+		if (substr($name, 0, 6) === 'array_' && is_callable($name) && ! in_array($name, $function_blacklist))
 		{
-			$args = array_merge($this->getArrayCopy(), $params);
-			return call_user_func_array($name, [$args]);
+			$args = ( ! empty($params)) 
+				? array_merge($this->getArrayCopy(), $params)
+				: $this->getArrayCopy();
+			
+			// Make sure the array items in the array parameter aren't used as function parameters
+			if (count($args === 1))
+			{
+				$args = [$args];
+			}
+			
+			return call_user_func_array($name, $args);
 		}
 	
 		// Call closures attached to the object
diff --git a/README.md b/README.md
index 9410d0d..110be9e 100644
--- a/README.md
+++ b/README.md
@@ -3,9 +3,25 @@ JSObject
 
 A PHP 5.4 class to emulate Javascript object literals.
 
-Also, can use ``array_`` functions to operate on the object's properties and values. (Only works for functions that start with ``array_`` and have the array as the first parameter)
+Also, can use ``array_`` functions to operate on the object's properties and values. (Only works for functions that start with ``array_`` and have the array as the first parameter.)
 
-Examples:
+The following array functions are blacklisted because of their parameter ordering, or unpredictable behavior:
+
+	* array_change_key_case
+	* array_count_values
+	* array_combine
+	* array_fill_keys
+	* array_fill
+	* array_key_exists
+	* array_map
+	* array_merge
+	* array_merge_recursive
+	* array_search
+	* array_unshift
+
+
+
+##Examples:
 
 * Basic Usage
 
diff --git a/tests.php b/tests.php
index eb2e223..04c0dc8 100644
--- a/tests.php
+++ b/tests.php
@@ -15,6 +15,8 @@ require_once('simpletest/autorun.php');
 // Include JSObject
 require_once('JSObject.php');
 
+
+
 class JSObjectTests extends UnitTestCase {
 
 	function TestIsA() 
@@ -41,6 +43,22 @@ class JSObjectTests extends UnitTestCase {
 		$this->assertEqual($obj->x(), 50);
 	}
 	
+	// List of blacklisted array functions
+/*
+			'array_change_key_case',
+			'array_count_values',
+			'array_combine',
+			'array_fill_keys',
+			'array_fill',
+			'array_key_exists',
+			'array_map',
+			'array_merge',
+			'array_merge_recursive',
+			'array_search',
+			'array_unshift',
+*/
+
+	
 	function TestArrayFlip()
 	{
 		$obj = new JSObject([
@@ -60,5 +78,15 @@ class JSObjectTests extends UnitTestCase {
 		
 		$this->assertEqual($obj->array_keys(), ['x','y']);
 	}
+	
+	function TestArrayValues()
+	{
+		$obj = new JSObject([
+			'x' => 'foo',
+			'y' => 'bar'
+		]);
+		
+		$this->assertEqual($obj->array_values(), ['foo','bar']);
+	}
 
 }
\ No newline at end of file