diff --git a/php/src/GildedRose.php b/php/src/GildedRose.php
index 54c921cb..735c0a0e 100644
--- a/php/src/GildedRose.php
+++ b/php/src/GildedRose.php
@@ -24,16 +24,16 @@ 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->name !== 'Aged Brie' and $item->name !== 'Backstage passes to a TAFKAL80ETC concert') {
                 if ($item->quality > 0) {
-                    if ($item->name != 'Sulfuras, Hand of Ragnaros') {
+                    if ($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 ($item->name === 'Backstage passes to a TAFKAL80ETC concert') {
                         if ($item->sellIn < 11) {
                             if ($item->quality < 50) {
                                 $item->quality = $item->quality + 1;
@@ -48,15 +48,15 @@ final class GildedRose
                 }
             }
 
-            if ($item->name != 'Sulfuras, Hand of Ragnaros') {
+            if ($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->name !== 'Aged Brie') {
+                    if ($item->name !== 'Backstage passes to a TAFKAL80ETC concert') {
                         if ($item->quality > 0) {
-                            if ($item->name != 'Sulfuras, Hand of Ragnaros') {
+                            if ($item->name !== 'Sulfuras, Hand of Ragnaros') {
                                 $item->quality = $item->quality - 1;
                             }
                         }