diff --git a/src/bindings/php/Tests/ButNotTest.php b/src/bindings/php/Tests/ButNotTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..9f8117a3de9f0be9b0892715ad2a65573d5e60a2
--- /dev/null
+++ b/src/bindings/php/Tests/ButNotTest.php
@@ -0,0 +1,35 @@
+<?php
+include_once 'hammer.php';
+
+class ButNotTest extends PHPUnit_Framework_TestCase
+{
+    protected $parser1;
+    protected $parser2;
+
+    protected function setUp()
+    {
+        $this->parser1 = h_butnot(ch("a"), h_token("ab"));
+        $this->parser2 = h_butnot(h_ch_range('0', '9'), ch('6'));
+    }
+
+    public function testSuccess1()
+    {
+        $result1 = h_parse($this->parser1, "a");
+        $result2 = h_parse($this->parser1, "aa");
+        $this->assertEquals("a", $result1);
+        $this->assertEquals("a", $result1);
+    }
+
+    public function testFailure1()
+    {
+        $result = h_parse($this->parser1, "ab");
+        $this->assertEquals(NULL, $result);
+    }
+
+    public function testFailure2()
+    {
+        $result = h_parse($this->parser2, "6");
+        $this->assertEquals(NULL, $result);
+    }
+}
+?>
\ No newline at end of file