Hi i am newbies here and this is my first post asking for help

can someone help me to correct this code so that i can use it.

thie is the LINK that i copy the code and the below code is copy from HERE

thank you

2. if(move_uploaded_file($pic['tmp_name'], $upload_dir.$pic['name'])){
3. // now insert the data in the database
4.         
7. $stm = "INSERT INTO images (new) VALUES (:new)";
8.         $query = $db->prepare($stm);
9.         $query->execute(array(':new'=>$pic['name']) 
10.                        );
11.         exit_status('File was uploaded successfuly!');
12.     }