Merge pull request #2021 from MukulKolpe/refractor-1944-PSR_Isssue_In_ExtendLibrary

Fixed PSR issues in the Extend(src\Appwrite) library

src/Appwrite/Extend/PDO.php

@@ -49,7 +49,7 @@ class PDO extends PDONative
         return $this->pdo->setAttribute($attribute, $value);
     }
 
-    public function prepare($statement, $driver_options = NULL)
+    public function prepare($statement, $driver_options = null)
     {
         return new PDOStatement($this, $this->pdo->prepare($statement, []));
     }
@@ -71,4 +71,4 @@ class PDO extends PDONative
 
         return $this->pdo;
     }
-}
+}

src/Appwrite/Extend/PDOStatement.php

@@ -100,10 +100,10 @@ class PDOStatement extends PDOStatementNative
 
     /**
      * Fetch All
-     * 
+     *
      * @param int $fetch_style
      * @param mixed $fetch_args
-     * 
+     *
      * @return array|false
      */
     public function fetchAll(int $fetch_style = PDO::FETCH_BOTH, mixed ...$fetch_args)
@@ -112,4 +112,4 @@ class PDOStatement extends PDOStatementNative
         
         return $result;
     }
-}
+}