使用PHP优化数据库性能的实用技巧

CREATE INDEX idx_name ON users (name);

$values = array();

for ($i = 0; $i < 1000; $i++) {
    $values[] = "('name{$i}', 'email{$i}', 'password{$i}')";
}

$query = "INSERT INTO users (name, email, password) VALUES " . implode(',', $values);

mysqli_query($conn, $query);

$stmt = $conn->prepare("INSERT INTO users (name, email, password) VALUES (?, ?, ?)");

$name = 'user1';
$email = 'user1@example.com';
$password = 'password1';

$stmt->bind_param("sss", $name, $email, $password);
$stmt->execute();

$name = 'user2';
$email = 'user2@example.com';
$password = 'password2';

$stmt->bind_param("sss", $name, $email, $password);
$stmt->execute();

// 从缓存中获取数据
$data = $cache->get('data');

if ($data === false) {
    // 数据不存在缓存中，从数据库中查询
    $data = $conn->query("SELECT * FROM users")->fetchAll();

    // 将数据存入缓存
    $cache->set('data', $data, 3600); // 缓存有效时间为1小时
}

// 使用数据
foreach ($data as $row) {
    // 处理数据
}

$connectionPool = new ConnectionPool(function () {
    $mysqli = new mysqli("localhost", "username", "password", "database");
    return $mysqli;
}, 10);

$connection = $connectionPool->getConnection();
$result = $connection->query("SELECT * FROM users");
$data = $result->fetch_all();

// 使用数据

$connectionPool->release($connection);