本文實例講述了Laravel框架實現的rbac權限管理操作。分享給大家供大家參考，具體如下：
介紹：根據不同的權限，在菜單欄顯示不同的功能，只對菜單進行了限制，若對路由也進行限制，請自行完善
1、建表（用戶表、角色表、權限表、用戶角色表、角色權限表）
CREATE TABLE IF NOT EXISTS mr_role(id int(11) PRIMARY KEY AUTO_INCREMENT COMMENT '自增id',name varchar(30) NOT NULL COMMENT '角色名')ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='角色表';CREATE TABLE IF NOT EXISTS mr_privilege(id int(11) PRIMARY KEY AUTO_INCREMENT COMMENT '自增id',name varchar(30) NOT NULL COMMENT '權限名',route varchar(50) NOT NULL COMMENT '權限所有的路由',description varchar(100) NOT NULL COMMENT '權限的描述')ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='權限表';CREATE TABLE IF NOT EXISTS mr_user_role(id int(11) PRIMARY KEY AUTO_INCREMENT COMMENT '自增id',user_id int(11) NOT NULL COMMENT '用戶id',role_id int(11) NOT NULL COMMENT '角色id')ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='用戶角色表';CREATE TABLE IF NOT EXISTS mr_role_privilege(id int(11) PRIMARY KEY AUTO_INCREMENT COMMENT '自增id',role_id int(11) NOT NULL COMMENT '角色id',privilege_id int(11) NOT NULL COMMENT '權限id')ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='角色權限表';
2、在用戶模型和角色模型中實現多對多
class User extends Model{ protected $primaryKey = 'id'; protected $table = 'user'; public $timestamps = false; public $guarded = []; public function roles() { return $this->belongsToMany('App/Model/Role', 'user_role', 'user_id', 'role_id')->withPivot('user_id', 'role_id'); }}class Role extends Model{ protected $table = 'role'; protected $primaryKey = 'id'; public $timestamps = false; public $guarded = []; public function privileges() { return $this->belongsToMany('App/Model/Privilege', 'role_privilege', 'role_id', 'privilege_id')->withPivot(['role_id', 'privilege_id']); }}3、將菜單視為公共區域，在app/Providers/AppServiceProvider.php里寫
public function boot(){ /View::composer('layout.slide', function($view) { $roles_id = User::find(session('user')['id'])->roles->map(function ($role) { return $role->id; }); // 使用map，最終得到的結果$roles_id = [1, 2, ...] $privileges = []; foreach ($roles_id as $role) { $privileges = array_merge($privileges, Role::find($role)->privileges->map(function ($privilege) { return [$privilege->name, $privilege->route]; })->toArray()); } // 得到的結果，$prpvileges = [['index/..', '列表']， ['', '']] $view->with('privileges', $privileges); });}4、菜單的實現（可以直接遍歷一個div，我這里因為有不同的樣式，便用了判斷）
@foreach ($privileges as $privilege) @if ($privilege[1] == 'key/index' && $privilege[0] == '鍵名列表') <div class="slide__left__key" style="margin-top: 10px;"><a href="{{ url('key/index') }}" rel="external nofollow" ><span class="glyphicon glyphicon-th"></span> 鍵名列表</a></div> @endif @if ($privilege[1] == 'key/create' && $privilege[0] == '添加鍵名') <div class="slide__left__key"><a href="{{ url('key/create') }}" rel="external nofollow" ><span class="glyphicon glyphicon-plus"></span> 添加鍵名</a></div> @endif @if ($privilege[1] == 'project/index' && $privilege[0] == '項目列表') <div class="slide__left__key" style="margin-top: 20px;"><a href="{{ url('project/index') }}" rel="external nofollow" ><span class="glyphicon glyphicon-th-list"></span> 項目列表</a></div> @endif @if ($privilege[1] == 'project/create' && $privilege[0] == '添加項目') <div class="slide__left__key"><a href="{{ url('project/create') }}" rel="external nofollow" ><span class="glyphicon glyphicon-edit"></span> 添加項目</a></div> @endif @if ($privilege[1] == 'user/index' && $privilege[0] == '用戶列表') <div class="slide__left__key" style="margin-top: 20px;"><a href="{{ url('user/index') }}" rel="external nofollow" ><span class="glyphicon glyphicon-th-large"></span> 用戶列表</a></div> @endif @if ($privilege[1] == 'user/create' && $privilege[0] == '添加用戶') <div class="slide__left__key"><a href="{{ url('user/create') }}" rel="external nofollow" ><span class="glyphicon glyphicon-plus-sign"></span> 添加用戶</a></div> @endif @endforeach希望本文所述對大家基于Laravel框架的PHP程序設計有所幫助。
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