sequence is definitely broken, results aren't landing in output array

src/bindings/php/Tests/EndTest.php

@@ -20,7 +20,7 @@ class EndPTest extends PHPUnit_Framework_TestCase
     {
         $result = h_parse($this->parser, "aa");
         var_dump($result);
-        $this->assertEquals(array(), $result);
+        $this->assertEquals(NULL, $result);
     }
 }
 ?>
\ No newline at end of file

src/bindings/php/Tests/SequenceTest.php

+<?php
+include_once 'hammer.php';
+
+class SequenceTest extends PHPUnit_Framework_TestCase
+{
+    protected $parser1;
+    protected $parser2;
+
+    protected function setUp()
+    {
+        $this->parser1 = sequence(ch("a"), ch("b"));
+        $this->parser2 = sequence(ch("a"), h_whitespace(ch("b")));
+    }
+
+    public function testSuccess1()
+    {
+        $result = h_parse($this->parser1, "ab");
+        $this->assertEquals(array("a", "b"), $result);
+    }
+    
+    public function testFailure1()
+    {
+        $result1 = h_parse($this->parser1, "a");
+        $result2 = h_parse($this->parser2, "b");
+        $this->assertEquals(NULL, $result1);
+        $this->assertEquals(NULL, $result2);
+    }
+
+    public function testSuccess2()
+    {
+        $result1 = h_parse($this->parser2, "ab");
+        $result2 = h_parse($this->parser2, "a b");
+        $result3 = h_parse($this->parser2, "a  b");
+        $this->assertEquals(array("a", "b"), $result1);
+        $this->assertEquals(array("a", "b"), $result2);
+        $this->assertEquals(array("a", "b"), $result3);
+    }
+}
+?>
\ No newline at end of file