diff --git a/php7/fixtures/texttest_fixture.php b/php7/fixtures/texttest_fixture.php
index a5676658..1bbd49b4 100644
--- a/php7/fixtures/texttest_fixture.php
+++ b/php7/fixtures/texttest_fixture.php
@@ -3,6 +3,7 @@
 require_once __DIR__ . '/../vendor/autoload.php';
 
 use App\GildedRose;
+use App\GildedRoseProductsService;
 use App\Item;
 
 echo "OMGHAI!\n";
@@ -17,10 +18,12 @@ $items = array(
     new Item('Backstage passes to a TAFKAL80ETC concert', 10, 49),
     new Item('Backstage passes to a TAFKAL80ETC concert', 5, 49),
     // this conjured item does not work properly yet
-    new Item('Conjured Mana Cake', 3, 6)
+    new Item('Conjured Mana Cake', 3, 6),
+    new Item('Conjured Mana Cake', 3, -1)
 );
 
-$app = new GildedRose($items);
+$gildedRose = new GildedRose($items);
+$app = new GildedRoseProductsService($gildedRose);
 
 $days = 2;
 if (count($argv) > 1) {
diff --git a/php7/src/GildedRose.php b/php7/src/GildedRose.php
index 5a7cd7c9..fe36fb25 100644
--- a/php7/src/GildedRose.php
+++ b/php7/src/GildedRose.php
@@ -2,49 +2,36 @@
 
 namespace App;
 
-final class GildedRose {
+final class GildedRose implements GildedRoseInterface {
+
+    const AGED_BRIE = 'Aged Brie';
+    const BACKSTAGE_PASS = 'Backstage passes to a TAFKAL80ETC concert';
+    const SULFULRAS_RAGNAROS = 'Sulfuras, Hand of Ragnaros';
+    const CONJURED = 'Conjured Mana Cake';
+    const SELL_IN_ZERO = 0;
+    const QUALITY_ZERO = 0;
+    const QUALITY_MID = 11;
+    const QUALITY_LOW = 6;
+    const QUALITY_MAX = 50;
 
     private $items = [];
 
+
     public function __construct($items) {
         $this->items = $items;
     }
 
-    public function updateQuality() {
-        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 ($item->sell_in < 11) {
-                            if ($item->quality < 50) {
-                                $item->quality = $item->quality + 1;
-                            }
-                        }
-                        if ($item->sell_in < 6) {
-                            if ($item->quality < 50) {
-                                $item->quality = $item->quality + 1;
-                            }
-                        }
-                    }
-                }
-            }
-            
-            if ($item->name != 'Sulfuras, Hand of Ragnaros') {
-                $item->sell_in = $item->sell_in - 1;
-            }
-            
-            if ($item->sell_in < 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') {
+    public function getItems(){
+        return $this->items;
+    }
+
+    public function checkQualityExceptSulfurasWhereSellInZero(Item $item)
+    {
+            if ($item->sell_in < self::SELL_IN_ZERO) {
+                if ($item->name != self::AGED_BRIE) {
+                    if ($item->name != self::BACKSTAGE_PASS) {
+                        if ($item->quality > self::QUALITY_ZERO) {
+                            if ($item->name != self::SULFULRAS_RAGNAROS) {
                                 $item->quality = $item->quality - 1;
                             }
                         }
@@ -52,12 +39,51 @@ final class GildedRose {
                         $item->quality = $item->quality - $item->quality;
                     }
                 } else {
-                    if ($item->quality < 50) {
+                    if ($item->quality < self::QUALITY_MAX) {
+                        $item->quality = $item->quality + 1;
+                    }
+                }
+            }
+
+    }
+
+    public function checkQualityExeceptSulfurasForBrieAndPassProducts(Item $item) {
+        if (!($item->name != GildedRose::AGED_BRIE and $item->name != GildedRose::BACKSTAGE_PASS)) {
+            if ($item->quality < self::QUALITY_MAX) {
+                $item->quality = $item->quality + 1;
+                if ($item->name == self::BACKSTAGE_PASS) {
+                    if ($item->sell_in < self::QUALITY_MID) {
+                        $item->quality = $item->quality + 1;
+                    }
+                    if ($item->sell_in < self::QUALITY_LOW) {
                         $item->quality = $item->quality + 1;
                     }
                 }
             }
         }
+
     }
+
+    public function checkQualityLessThanZeroExceptSulfuras(Item $item){
+        if ($item->name != GildedRose::AGED_BRIE and $item->name != GildedRose::BACKSTAGE_PASS) {
+            if ($item->quality > self::QUALITY_ZERO) {
+                if ($item->name != self::SULFULRAS_RAGNAROS) {
+                    if($item->name == self::CONJURED) {
+                        $item->quality = ($item->quality == 1) ? $item->quality - 1 : $item->quality - 2;
+                    }else {
+                        $item->quality = $item->quality - 1;
+                    }
+                }
+            }
+        }
+    }
+
+    public function reduceSellInExceptSulfuras(Item $item){
+        //reduce sellin
+        if ($item->name != self::SULFULRAS_RAGNAROS) {
+            $item->sell_in = $item->sell_in - 1;
+        }
+    }
+
 }
 
diff --git a/php7/src/GildedRoseInterface.php b/php7/src/GildedRoseInterface.php
new file mode 100644
index 00000000..6d4628cd
--- /dev/null
+++ b/php7/src/GildedRoseInterface.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace App;
+
+interface GildedRoseInterface {
+
+    public function checkQualityExceptSulfurasWhereSellInZero(Item $item);
+
+    public function checkQualityExeceptSulfurasForBrieAndPassProducts(Item $item);
+
+    public function checkQualityLessThanZeroExceptSulfuras(Item $item);
+
+    public function reduceSellInExceptSulfuras(Item $item);
+
+
+}
diff --git a/php7/src/GildedRoseProductsService.php b/php7/src/GildedRoseProductsService.php
new file mode 100644
index 00000000..af7cd656
--- /dev/null
+++ b/php7/src/GildedRoseProductsService.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App;
+
+class GildedRoseProductsService {
+
+    public $GildedRose;
+    public function __construct(GildedRoseInterface $gildedRose) {
+       $this->GildedRose = $gildedRose;
+    }
+
+    public function updateQuality() {
+
+        foreach ($this->GildedRose->getItems() as $item) {
+            $this->GildedRose->checkQualityLessThanZeroExceptSulfuras($item);
+            $this->GildedRose->checkQualityExeceptSulfurasForBrieAndPassProducts($item);
+            $this->GildedRose->reduceSellInExceptSulfuras($item);
+            $this->GildedRose->checkQualityExceptSulfurasWhereSellInZero($item);
+        }
+    }
+}
\ No newline at end of file