diff --git a/src/lastguest/Murmur.php b/src/lastguest/Murmur.php
index deef5ca..9c84119 100644
--- a/src/lastguest/Murmur.php
+++ b/src/lastguest/Murmur.php
@@ -14,48 +14,61 @@
 
 namespace lastguest;
 
-class Murmur {
+class Murmur
+{
 
   /**
    * @param  string $key   Text to hash.
    * @param  integer $seed  Positive integer only
    * @return integer 32-bit positive integer hash
    */
-  public static function hash3_int(string $key, int $seed=0) : int {
-    $key  = array_values(unpack('C*', $key));
+  public static function hash3_int(string $key, int $seed = 0): int
+  {
+    $key = array_values(unpack('C*', $key));
     $klen = count($key);
-    $h1   = $seed < 0 ? -$seed : $seed;
-    $remainder = $i = 0;
-    for ($bytes=$klen-($remainder=$klen&3) ; $i < $bytes ; ) {
-      $k1 = $key[$i]
-        | ($key[++$i] << 8)
-        | ($key[++$i] << 16)
-        | ($key[++$i] << 24);
+    $h1 = $seed < 0 ? -$seed : $seed;
+    $bytes = $klen - ($remainder = $klen & 3);
+
+    for ($i = 0; $i < $bytes; ) {
+      $k1 = $key[$i] |
+        ($key[++$i] << 8) |
+        ($key[++$i] << 16) |
+        ($key[++$i] << 24);
       ++$i;
-      $k1  = (((($k1 & 0xffff) * 0xcc9e2d51) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) * 0xcc9e2d51) & 0xffff) << 16))) & 0xffffffff;
-      $k1  = $k1 << 15 | ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) | 0x4000);
-      $k1  = (((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) * 0x1b873593) & 0xffff) << 16))) & 0xffffffff;
+
+      $k1 = (($k1 & 0xFFFF) * 0x2D51 + ((($k1 >> 16) * 0x2D51 + ($k1 & 0xFFFF) * 0xCC9E) << 16)) & 0xFFFFFFFF;
+      $k1 = (($k1 << 15) | (($k1 >> 17) & 0x7FFF)) & 0xFFFFFFFF;
+      $k1 = (($k1 & 0xFFFF) * 0x3593 + ((($k1 >> 16) * 0x3593 + ($k1 & 0xFFFF) * 0x1B87) << 16)) & 0xFFFFFFFF;
+
       $h1 ^= $k1;
-      $h1  = $h1 << 13 | ($h1 >= 0 ? $h1 >> 19 : (($h1 & 0x7fffffff) >> 19) | 0x1000);
-      $h1b = (((($h1 & 0xffff) * 5) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000)) * 5) & 0xffff) << 16))) & 0xffffffff;
-      $h1  = ((($h1b & 0xffff) + 0x6b64) + ((((($h1b >= 0 ? $h1b >> 16 : (($h1b & 0x7fffffff) >> 16) | 0x8000)) + 0xe654) & 0xffff) << 16));
+      $h1 = (($h1 << 13) | (($h1 >> 19) & 0x1FFF)) & 0xFFFFFFFF;
+      $h1 = (($h1 & 0xFFFF) * 5 + ((($h1 >> 16) * 5) << 16)) & 0xFFFFFFFF;
+      $h1 = ($h1 + 0xe6546b64) & 0xFFFFFFFF;
     }
-    $k1 = 0;
-    switch ($remainder) {
-      case 3: $k1 ^= $key[$i + 2] << 16;
-      case 2: $k1 ^= $key[$i + 1] << 8;
-      case 1: $k1 ^= $key[$i];
-      $k1  = ((($k1 & 0xffff) * 0xcc9e2d51) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) * 0xcc9e2d51) & 0xffff) << 16)) & 0xffffffff;
-      $k1  = $k1 << 15 | ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) | 0x4000);
-      $k1  = ((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) * 0x1b873593) & 0xffff) << 16)) & 0xffffffff;
-      $h1 ^= $k1;
+
+    if ($remainder) {
+      $k1 = 0;
+      switch ($remainder) {
+        case 3:
+          $k1 ^= $key[$i + 2] << 16;
+        case 2:
+          $k1 ^= $key[$i + 1] << 8;
+        case 1:
+          $k1 ^= $key[$i];
+          $k1 = (($k1 & 0xFFFF) * 0x2D51 + ((($k1 >> 16) * 0x2D51 + ($k1 & 0xFFFF) * 0xCC9E) << 16)) & 0xFFFFFFFF;
+          $k1 = (($k1 << 15) | (($k1 >> 17) & 0x7FFF)) & 0xFFFFFFFF;
+          $k1 = (($k1 & 0xFFFF) * 0x3593 + ((($k1 >> 16) * 0x3593 + ($k1 & 0xFFFF) * 0x1B87) << 16)) & 0xFFFFFFFF;
+          $h1 ^= $k1;
+      }
     }
+
     $h1 ^= $klen;
-    $h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000);
-    $h1  = ((($h1 & 0xffff) * 0x85ebca6b) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000)) * 0x85ebca6b) & 0xffff) << 16)) & 0xffffffff;
-    $h1 ^= ($h1 >= 0 ? $h1 >> 13 : (($h1 & 0x7fffffff) >> 13) | 0x40000);
-    $h1  = (((($h1 & 0xffff) * 0xc2b2ae35) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000)) * 0xc2b2ae35) & 0xffff) << 16))) & 0xffffffff;
-    $h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000);
+    $h1 ^= ($h1 >> 16) & 0xFFFF;
+    $h1 = (($h1 & 0xFFFF) * 0xCA6B + ((($h1 >> 16) * 0xCA6B + ($h1 & 0xFFFF) * 0x85EB) << 16)) & 0xFFFFFFFF;
+    $h1 ^= ($h1 >> 13) & 0x7FFFF;
+    $h1 = (($h1 & 0xFFFF) * 0xAE35 + ((($h1 >> 16) * 0xAE35 + ($h1 & 0xFFFF) * 0xC2B2) << 16)) & 0xFFFFFFFF;
+    $h1 ^= ($h1 >> 16) & 0xFFFF;
+
     return $h1;
   }
 
@@ -64,7 +77,8 @@ public static function hash3_int(string $key, int $seed=0) : int {
    * @param  integer $seed  Positive integer only
    * @return string
    */
-  public static function hash3(string $key, int $seed=0) : string {
+  public static function hash3(string $key, int $seed = 0): string
+  {
     return base_convert(sprintf("%u\n", self::hash3_int($key, $seed)), 10, 32);
   }
 }