How can PHP developers improve the efficiency of their code when working with MySQL queries?

PHP developers can improve the efficiency of their code when working with MySQL queries by using prepared statements instead of directly inserting variables into the queries. Prepared statements help prevent SQL injection attacks and can also improve performance by allowing the database server to optimize query execution. 

// Using prepared statements to improve efficiency of MySQL queries
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $username);
$stmt->execute();
$results = $stmt->fetchAll();

Keywords

MySQL PHP query optimization indexing prepared statements

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