本文实例讲述了Laravel框架实现的rbac权限管理操作。分享给大家供大家参考，具体如下：
介绍：根据不同的权限，在菜单栏显示不同的功能，只对菜单进行了限制，若对路由也进行限制，请自行完善
1、建表（用户表、角色表、权限表、用户角色表、角色权限表）
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 '权限名',route varchar(50) NOT NULL COMMENT '权限所有的路由',description varchar(100) NOT NULL COMMENT '权限的描述')ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='权限表';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 '用户id',role_id int(11) NOT NULL COMMENT '角色id')ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='用户角色表';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 '权限id')ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='角色权限表';
2、在用户模型和角色模型中实现多对多
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 $this->belongsToMany('App/Model/Privilege', 'role_privilege', 'role_id', 'privilege_id')->withPivot(['role_id', 'privilege_id']); }} 3、将菜单视为公共区域，在app/Providers/AppServiceProvider.php里写
public function boot(){ /View::composer('layout.slide', function($view) { $roles_id = User::find(session('user')['id'])->roles->map(function ($role) { return $role->id; }); // 使用map，最终得到的结果$roles_id = [1, 2, ...] $privileges = []; foreach ($roles_id as $role) { $privileges = array_merge($privileges, Role::find($role)->privileges->map(function ($privilege) { return [$privilege->name, $privilege->route]; })->toArray()); } // 得到的结果，$prpvileges = [['index/..', '列表']， ['', '']] $view->with('privileges', $privileges); });} 4、菜单的实现（可以直接遍历一个div，我这里因为有不同的样式，便用了判断）
@foreach ($privileges as $privilege) @if ($privilege[1] == 'key/index' && $privilege[0] == '键名列表') <div class="slide__left__key" style="margin-top: 10px;"><a href="{{ url('key/index') }}" rel="external nofollow" ><span class="glyphicon glyphicon-th"></span> 键名列表</a></div> @endif @if ($privilege[1] == 'key/create' && $privilege[0] == '添加键名') <div class="slide__left__key"><a href="{{ url('key/create') }}" rel="external nofollow" ><span class="glyphicon glyphicon-plus"></span> 添加键名</a></div> @endif @if ($privilege[1] == 'project/index' && $privilege[0] == '项目列表') <div class="slide__left__key" style="margin-top: 20px;"><a href="{{ url('project/index') }}" rel="external nofollow" ><span class="glyphicon glyphicon-th-list"></span> 项目列表</a></div> @endif @if ($privilege[1] == 'project/create' && $privilege[0] == '添加项目') <div class="slide__left__key"><a href="{{ url('project/create') }}" rel="external nofollow" ><span class="glyphicon glyphicon-edit"></span> 添加项目</a></div> @endif @if ($privilege[1] == 'user/index' && $privilege[0] == '用户列表') <div class="slide__left__key" style="margin-top: 20px;"><a href="{{ url('user/index') }}" rel="external nofollow" ><span class="glyphicon glyphicon-th-large"></span> 用户列表</a></div> @endif @if ($privilege[1] == 'user/create' && $privilege[0] == '添加用户') <div class="slide__left__key"><a href="{{ url('user/create') }}" rel="external nofollow" ><span class="glyphicon glyphicon-plus-sign"></span> 添加用户</a></div> @endif @endforeach 希望本文所述对大家基于Laravel框架的PHP程序设计有所帮助。
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