Hello,
I’m sorry to bother you with my newbie question. I’m going to need the help of someone to convert the following Postgres DB connection to MySQL and what line of code I might need to change in other pages. The connection was written for a Heroku app Postgres DB connection and I need to test the app locally and make some changes. Thank you.
<?php
namespace lib\db;
use Exception;
use PDO;
use PDOException;
/**
* Provides a reusable PDO connection
*/
class Connection {
/**
* @var \PDO
*/
private static $pdo;
/**
* Connect to the database and return a PDO.
*
* @return PDO A PDO that can be used to interact with the database.
* @throws Exception
*/
static function get_db_pdo(): PDO
{
if (isset(self::$pdo)) {
return self::$pdo;
}
// Get the database URL from the environment
$url = getenv("DATABASE_URL");
if (!$url) {
throw new Exception('Cannot connect to the database (1)');
}
$db = parse_url($url);
if(!$db || empty($db["path"])) {
throw new Exception('Failed to connect to database (2)');
}
$db["path"] = ltrim($db["path"], "/");
// Connect to the database
try {
// Data Source Name (DSN)
$dsn = "pgsql:" . sprintf(
"host=%s;port=%s;user=%s;password=%s;dbname=%s",
$db["host"], $db["port"], $db["user"], $db["pass"], $db["path"]
);
// PHP Data Object (PDO)
self::$pdo = new PDO($dsn);
self::$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
throw new Exception('Failed to initialize database connection (3)', 0, $e);
}
return self::$pdo;
}
}