Created individual categories page

Signed-off-by: rodude123 <rodude123@gmail.com>

dist/api/blog/blogData.php

@@ -1,5 +1,7 @@
 <?php
+
 namespace api\blog;
+
 use api\utils\imgUtils;
 use DOMDocument;
 use PDO;
@@ -125,7 +127,7 @@ class blogData
     public function getCategories(): array
     {
         $conn = dbConn();
-        $stmt = $conn->prepare("SELECT categories FROM blog;");
+        $stmt = $conn->prepare("SELECT DISTINCT categories FROM blog;");
         $stmt->execute();
 
         // set the resulting array to associative
@@ -415,7 +417,7 @@ class blogData
                 }
                 else
                 {
-                    rename($from . $file,$to . $file);
+                    rename($from . $file, $to . $file);
                 }
             }
         }
@@ -430,17 +432,15 @@ class blogData
 
     /**
      * Get all posts with the given category
-     * @param mixed $category - Category of the post
+     * @param string $category - Category of the post
      * @return array - Array of all posts with the given category or error message
      */
-    public function getPostsByCategory(mixed $category)
+    public function getPostsByCategory(string $category): array
     {
         $conn = dbConn();
-        $stmt = $conn->prepare("SELECT * FROM blog WHERE categories = :category;");
+        $stmt = $conn->prepare("SELECT * FROM blog WHERE LOCATE(:category, categories) > 0;");
         $stmt->bindParam(":category", $category);
         $stmt->execute();
-        $result = $stmt->fetchAll(PDO::FETCH_ASSOC);
-
-
+        return $stmt->fetchAll(PDO::FETCH_ASSOC);
     }
 }