PDO::ERRMODE_EXCEPTION
]);
// Auto-migration: if the table does not exist, create it
$pdo->exec(<<<'SQL'
CREATE TABLE IF NOT EXISTS visitors (
id SERIAL PRIMARY KEY,
visited_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);
SQL
);
} catch (Exception $e) {
die("Database connection or migration failed: " . $e->getMessage());
}
// Insert a row then count
$pdo->exec("INSERT INTO visitors DEFAULT VALUES");
$count = $pdo->query("SELECT COUNT(*) FROM visitors")->fetchColumn();
?>
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