CREATE TABLE alumni ( id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(100) NOT NULL, graduation_year YEAR NOT NULL ); ]]>
function is_admin($user_id) { // 假设我们有一个名为users的表,其中包含is_admin字段 $conn = new mysqli('localhost', 'username', 'password', 'database_name'); if ($conn->connect_error) { die("连接失败: " . $conn->connect_error); } $sql = "SELECT is_admin FROM users WHERE id = ?"; $stmt = $conn->prepare($sql); $stmt->bind_param("i", $user_id); $stmt->execute(); $result = $stmt->get_result(); $row = $result->fetch_assoc(); return $row['is_admin'] == 1; } ]]>