└── DatabaseAdaptor.php


/DatabaseAdaptor.php:
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 1 | <?php
 2 | // Xin Li
 3 | class DatabaseAdaptor {
 4 |     private $DB; // The instance variable used in every method
 5 |     // Connect to an existing data based named 'first'
 6 |     public function __construct() {
 7 |         $dataBase = 'mysql:dbname=imdb_small;charset=utf8;host=127.0.0.1';
 8 |         $user = 'root';
 9 |         $password = ''; // Use the empty string with our XAMPP install
10 |         try {
11 |             $this->DB = new PDO ( $dataBase, $user, $password );
12 |             $this->DB->setAttribute ( PDO::ATTR_ERRMODE,
13 |                 PDO::ERRMODE_EXCEPTION );
14 |         } catch ( PDOException $e ) {
15 |             echo ('Error establishing Connection');
16 |             exit ();
17 |         }
18 |     } // . . . continued
19 |     
20 |     public function getAllMovies () {
21 |         $stmt = $this->DB->prepare( "SELECT * FROM movies" );
22 |         $stmt->execute();
23 |         return $stmt->fetchAll(PDO::FETCH_ASSOC);
24 |     }
25 | 
26 |     public function getAllActors () {
27 |         $stmt = $this->DB->prepare( "SELECT * FROM actors" );
28 |         $stmt->execute();
29 |         return $stmt->fetchAll(PDO::FETCH_ASSOC);
30 |     }
31 | 
32 |     public function getRoles ($first_name, $last_name) {
33 |         $stmt = $this->DB->prepare( "SELECT * FROM roles JOIN actors ON actors.id = actor_id JOIN movies ON movies.id = movie_id where first_name = \"$first_name\" and last_name = \"$last_name\"" );
34 |         $stmt->execute();
35 |         return $stmt->fetchAll(PDO::FETCH_ASSOC);
36 |     }
37 |     
38 |     public function getMoviesReleasedSince($year) {
39 |         $stmt = $this->DB->prepare("SELECT * FROM movies where year >= " . $year);
40 |         $stmt->execute();
41 |         return $stmt->fetchAll(PDO::FETCH_ASSOC);
42 |     }
43 | }
44 | $theDBA = new DatabaseAdaptor();
45 | $arr = $theDBA->getRoles('Kevin', 'Bacon');
46 | foreach ($arr as $value) {
47 |     echo "$value[role]: '$value[name]'\r";
48 | }
49 | ?>


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