Understanding the Why: Different PDO DSN Formats for MySQL and PostgreSQL

The Difference:

While both MySQL and PostgreSQL use PDO, their DSN formats differ. Here's why:

1. Parsing approach:

Example Code:

// MySQL connection
$dsn = "mysql:host=localhost;dbname=my_database";
$user = "username";
$password = "password";

// Connect to MySQL
$pdo = new PDO($dsn, $user, $password);


// PostgreSQL connection
$dsn = "pgsql:host=localhost;dbname=my_database";
$user = "username";
$password = "password";

// Connect to PostgreSQL
$pdo = new PDO($dsn, $user, $password);

Related Issues and Solutions: