What are some best practices for optimizing database searches in PHP?

One best practice for optimizing database searches in PHP is to use prepared statements to prevent SQL injection attacks and improve performance. This can be done by using parameterized queries instead of directly inserting user input into SQL queries. 

// Connect to the database
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');

// Prepare a statement with a placeholder
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');

// Bind the parameter to the placeholder
$stmt->bindParam(':username', $username);

// Execute the query
$stmt->execute();

// Fetch the results
$results = $stmt->fetchAll();

Keywords

SQL optimization indexing query caching prepared statements database normalization

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