ingave.php

<?php
/**
 * Created by PhpStorm.
 * User: 11302521
 * Date: 14/06/2017
 * Time: 12:32
 */
$user = 'root';
$password = '';
$database = 'examen';
$host = 'localhost';

$pdo = null;
try {
    $pdo = new PDO("mysql:host=$host;dbname=$database", $user, $password);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $statement = $pdo->query("SHOW DATABASES");

    foreach ($statement as $row) {
        echo '<option value=' . $row[0] . '>' . $row[0] . '</option>';
    }
} catch (PDOException $e) {
    print "Exception!: " . $e->getMessage();
}
$pdo = null;