diff --git a/src/bindings/php/Tests/Uint16Test.php b/src/bindings/php/Tests/Uint16Test.php
new file mode 100644
index 0000000..4639389
--- /dev/null
+++ b/src/bindings/php/Tests/Uint16Test.php
@@ -0,0 +1,24 @@
+<?php
+
+include_once 'hammer.php';
+
+class Uint16Test extends PHPUnit_Framework_TestCase 
+{
+    protected $parser;
+
+    protected function setUp() 
+    {
+        $this->parser = h_uint16();
+    }
+    public function testSuccess() 
+    {
+        $result = h_parse($this->parser, "\x02\x00");
+        $this->assertEquals(0x200, $result);
+    }     
+    public function testFailure()
+    {
+        $result = h_parse($this->parser, "\x02");
+        $this->assertEquals(NULL, $result);
+    }
+}
+?>
\ No newline at end of file
diff --git a/src/bindings/php/Tests/Uint32Test.php b/src/bindings/php/Tests/Uint32Test.php
new file mode 100644
index 0000000..f9b0f0b
--- /dev/null
+++ b/src/bindings/php/Tests/Uint32Test.php
@@ -0,0 +1,24 @@
+<?php
+
+include_once 'hammer.php';
+
+class Uint32Test extends PHPUnit_Framework_TestCase 
+{
+    protected $parser;
+
+    protected function setUp() 
+    {
+        $this->parser = h_uint32();
+    }
+    public function testSuccess() 
+    {
+        $result = h_parse($this->parser, "\x00\x02\x00\x00");
+        $this->assertEquals(0x20000, $result);
+    }     
+    public function testFailure()
+    {
+        $result = h_parse($this->parser, "\x00\x02\x00");
+        $this->assertEquals(NULL, $result);
+    }
+}
+?>
\ No newline at end of file
diff --git a/src/bindings/php/Tests/Uint64Test.php b/src/bindings/php/Tests/Uint64Test.php
new file mode 100644
index 0000000..9910916
--- /dev/null
+++ b/src/bindings/php/Tests/Uint64Test.php
@@ -0,0 +1,24 @@
+<?php
+
+include_once 'hammer.php';
+
+class Uint64Test extends PHPUnit_Framework_TestCase 
+{
+    protected $parser;
+
+    protected function setUp() 
+    {
+        $this->parser = h_uint64();
+    }
+    public function testSuccess() 
+    {
+        $result = h_parse($this->parser, "\x00\x00\x00\x02\x00\x00\x00\x00");
+        $this->assertEquals(0x200000000, $result);
+    }     
+    public function testFailure()
+    {
+        $result = h_parse($this->parser, "\x00\x00\x00\x02\x00\x00\x00");
+        $this->assertEquals(NULL, $result);
+    }
+}
+?>
\ No newline at end of file
diff --git a/src/bindings/php/Tests/Uint8Test.php b/src/bindings/php/Tests/Uint8Test.php
new file mode 100644
index 0000000..6797949
--- /dev/null
+++ b/src/bindings/php/Tests/Uint8Test.php
@@ -0,0 +1,24 @@
+<?php
+
+include_once 'hammer.php';
+
+class Uint8Test extends PHPUnit_Framework_TestCase 
+{
+    protected $parser;
+
+    protected function setUp() 
+    {
+        $this->parser = h_uint8();
+    }
+    public function testSuccess() 
+    {
+        $result = h_parse($this->parser, "\x78");
+        $this->assertEquals(0x78, $result);
+    }     
+    public function testFailure()
+    {
+        $result = h_parse($this->parser, "");
+        $this->assertEquals(NULL, $result);
+    }
+}
+?>
\ No newline at end of file