PHP は、知識の質問と回答の Web サイトにユーザー グループと権限の制御機能を実装します。

CREATE TABLE `user_group` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `description` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

<?php
// 添加用户组
function addUserGroup($name, $description) {
    $conn = connectToDatabase();
    $stmt = $conn->prepare("INSERT INTO user_group (name, description) VALUES (?, ?)");
    $stmt->bind_param("ss", $name, $description);
    $stmt->execute();
    $stmt->close();
    $conn->close();
}
?>

<?php
// 获取用户组列表
function getUserGroupList() {
    $conn = connectToDatabase();
    $result = $conn->query("SELECT * FROM user_group");
    $userGroups = [];
    while($row = $result->fetch_assoc()) {
        $userGroups[] = $row;
    }
    $result->free();
    $conn->close();
    return $userGroups;
}
?>

CREATE TABLE `user_permission` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `description` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

<?php
// 添加权限
function addPermission($name, $description) {
    $conn = connectToDatabase();
    $stmt = $conn->prepare("INSERT INTO user_permission (name, description) VALUES (?, ?)");
    $stmt->bind_param("ss", $name, $description);
    $stmt->execute();
    $stmt->close();
    $conn->close();
}
?>

<?php
// 为用户组分配权限
function assignPermission($groupId, $permissionId) {
    $conn = connectToDatabase();
    $stmt = $conn->prepare("INSERT INTO user_group_permission (group_id, permission_id) VALUES (?, ?)");
    $stmt->bind_param("ii", $groupId, $permissionId);
    $stmt->execute();
    $stmt->close();
    $conn->close();
}
?>

<?php
// 验证用户权限
function verifyPermission($groupId, $permissionId) {
    $conn = connectToDatabase();
    $result = $conn->query("SELECT * FROM user_group_permission WHERE group_id = $groupId AND permission_id = $permissionId");
    $numRows = $result->num_rows;
    $result->free();
    $conn->close();
    return ($numRows > 0);
}
?>