MySQL with PHP — a practical guide to MySQL with PHP PDO with clear examples you can reuse in real projects.
SQL Tutorial Series (90/100). Prefer one article? Read the complete SQL tutorial.
Short description
Avoid old insecure concatenation patterns; always bind parameters.
PDO prepare
$stmt = $pdo->prepare('SELECT id, email FROM users WHERE id = ?');
$stmt->execute([$id]);
$user = $stmt->fetch();