diff --git a/php/src/GildedRose.php b/php/src/GildedRose.php
index 54d554df..eb816198 100644
--- a/php/src/GildedRose.php
+++ b/php/src/GildedRose.php
@@ -22,51 +22,45 @@ final class GildedRose
     public function updateQuality(): void
     {
         foreach ($this->items as $item) {
-            if ($item->name != 'Aged Brie' and $item->name != 'Backstage passes to a TAFKAL80ETC concert') {
-                if ($item->quality > 0) {
-                    if ($item->name != 'Sulfuras, Hand of Ragnaros') {
-                        $item->quality = $item->quality - 1;
-                    }
-                }
-            } else {
-                if ($item->quality < 50) {
-                    $item->quality = $item->quality + 1;
-                    if ($item->name == 'Backstage passes to a TAFKAL80ETC concert') {
-                        if ($item->sellIn < 11) {
-                            if ($item->quality < 50) {
-                                $item->quality = $item->quality + 1;
-                            }
-                        }
-                        if ($item->sellIn < 6) {
-                            if ($item->quality < 50) {
-                                $item->quality = $item->quality + 1;
-                            }
-                        }
-                    }
-                }
-            }
-
-            if ($item->name != 'Sulfuras, Hand of Ragnaros') {
-                $item->sellIn = $item->sellIn - 1;
-            }
-
-            if ($item->sellIn < 0) {
-                if ($item->name != 'Aged Brie') {
-                    if ($item->name != 'Backstage passes to a TAFKAL80ETC concert') {
-                        if ($item->quality > 0) {
-                            if ($item->name != 'Sulfuras, Hand of Ragnaros') {
-                                $item->quality = $item->quality - 1;
-                            }
-                        }
-                    } else {
-                        $item->quality = $item->quality - $item->quality;
-                    }
-                } else {
+            switch ($item->name) {
+                case 'Aged Brie':
+                    $item->sellIn--;
                     if ($item->quality < 50) {
-                        $item->quality = $item->quality + 1;
+                        $item->quality++;
                     }
-                }
-            }
+                    break;
+                case 'Backstage passes to a TAFKAL80ETC concert':
+
+                    if (($item->quality < 50) && ($item->sellIn >= 0)) {
+                        $item->quality++;
+                        if (($item->sellIn < 11) && ($item->quality < 50)) {
+                            $item->quality++;
+                        }
+                        if (($item->sellIn < 6) && ($item->quality < 50)) {
+                            $item->quality++;
+                        }
+                    }
+                    $item->sellIn--;
+
+                    // If we are past the concert date, set the quality to 0.
+                    if ($item->sellIn < 0) {
+                        $item->quality = 0;
+                    }
+
+                    break;
+                case 'Sulfuras, Hand of Ragnaros':
+                    $item->quality = 80;
+                    break;
+                default: // Normal Items
+                    $item->sellIn--;
+                    if ($item->quality > 0) {
+                        $item->quality--;
+                        if (($item->sellIn < 0) && ($item->quality > 0)) {
+                            $item->quality--;
+                        }
+                    }
+                    break;
+            } // END switch
         }
     }
 }