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What are the best practices for integrating PHP with MySQL for efficient data management?

When integrating PHP with MySQL for efficient data management, it is important to use prepared statements to prevent SQL injection attacks, utilize indexes on columns frequently used in queries, and properly sanitize user input to avoid security vulnerabilities. Additionally, consider using stored procedures for complex queries to improve performance.

php 
// Connect to MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Use prepared statements to prevent SQL injection
$stmt = $conn->prepare("SELECT * FROM users WHERE username = ?");
$stmt->bind_param("s", $username);
$stmt->execute();
$result = $stmt->get_result();

// Sanitize user input
$username = mysqli_real_escape_string($conn, $_POST['username']);
$password = mysqli_real_escape_string($conn, $_POST['password']);

// Use stored procedures for complex queries
$sql = "CALL sp_get_user_details(?)";
$stmt = $conn->prepare($sql);
$stmt->bind_param("i", $user_id);
$stmt->execute();

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