php筛选mysql数据库

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 准备SQL语句
$sql = "SELECT id, name, email FROM users WHERE age > ? AND city = ?";
$stmt = $conn->prepare($sql);

// 绑定参数
$age = 25;
$city = "New York";
$stmt->bind_param("is", $age, $city);

// 执行查询
$stmt->execute();

// 获取结果
$result = $stmt->get_result();

// 遍历结果并输出
while ($row = $result->fetch_assoc()) {
    echo "ID: " . $row["id"]. " - Name: " . $row["name"]. " - Email: " . $row["email"]. "<br>";
}

// 关闭连接
$stmt->close();
$conn->close();
?>