如何从数组 eloquent laravel 获取权限名称值[重复]

Question

如果我的英语有点奇怪，我很抱歉，如果您不明白我的问题，请问我。 所以，我想要这样的逻辑。当我尝试使用如下所示的简单数组时，它有效。

    $a = array('car', 'bicycle', 'plane');
    $b = array('car', 'boat', 'truck');
    foreach ($a as $c)
    {
        if (in_array($c,$b))
        {
            echo "<b>" . $c . "</b>";
            echo "\r\n";
        } else
        {
            echo $c;
            echo "\r\n";
        }
    }

但是当我尝试将它应用到数组 laravel eloqueunt 中时，看起来我无法从数组中获取值。我想匹配数据库中的数组（权限名称）。我想显示“权限”表中的所有权限名称，然后如果“权限名称”已经应用于“角色”，我希望它显示为选中状态。这是我的代码：

    $roles = Role::where('id', '=', 2)->with(['permissions'])->get();
    $permissions = Permission::all();
    foreach ($roles as $role)
    {
        foreach ($permissions as $permission)
        {
            $roleper = array($role['permissions']);
            $pername = array($permissions);
            if (in_array($pername,$roleper))
            {
                echo "<b>" . $permission['name'] . "</b>";
                echo "\r\n";
            } else {
                echo $permission['name'];
                echo "\r\n";
            }

        }
    }

当我返回 $roleper 时，结果如下：

[[{"id":1,"name":"Add Color","guard_name":"web","created_at":"2020-08-10 02:49:25","updated_at":"2020-08-10 02:49:25","pivot":{"role_id":2,"permission_id":1}},{"id":2,"name":"Edit Color","guard_name":"web","created_at":"2020-08-10 02:50:49","updated_at":"2020-08-10 02:50:49","pivot":{"role_id":2,"permission_id":2}},{"id":3,"name":"Delete Color","guard_name":"web","created_at":"2020-08-10 02:50:57","updated_at":"2020-08-10 02:50:57","pivot":{"role_id":2,"permission_id":3}}]]

当我返回 $pername 时，结果如下：

[[{"id":1,"name":"Add Color","guard_name":"web","created_at":"2020-08-10 02:49:25","updated_at":"2020-08-10 02:49:25"},{"id":2,"name":"Edit Color","guard_name":"web","created_at":"2020-08-10 02:50:49","updated_at":"2020-08-10 02:50:49"},{"id":3,"name":"Delete Color","guard_name":"web","created_at":"2020-08-10 02:50:57","updated_at":"2020-08-10 02:50:57"},{"id":4,"name":"Add Material","guard_name":"web","created_at":"2020-08-10 03:11:16","updated_at":"2020-08-10 03:11:16"},{"id":5,"name":"Edit Material","guard_name":"web","created_at":"2020-08-10 03:11:25","updated_at":"2020-08-10 03:11:25"},{"id":6,"name":"Delete Material","guard_name":"web","created_at":"2020-08-10 03:11:36","updated_at":"2020-08-10 03:11:36"},{"id":7,"name":"Add Brand","guard_name":"web","created_at":"2020-08-10 03:11:48","updated_at":"2020-08-10 03:11:48"},{"id":8,"name":"Edit Brand","guard_name":"web","created_at":"2020-08-10 03:11:54","updated_at":"2020-08-10 03:11:54"},{"id":9,"name":"Delete Brand","guard_name":"web","created_at":"2020-08-10 03:12:00","updated_at":"2020-08-10 03:12:00"},{"id":10,"name":"Add Product","guard_name":"web","created_at":"2020-08-10 03:12:09","updated_at":"2020-08-10 03:12:09"},{"id":11,"name":"Edit Product","guard_name":"web","created_at":"2020-08-10 03:12:17","updated_at":"2020-08-10 03:12:17"},{"id":12,"name":"Delete Product","guard_name":"web","created_at":"2020-08-10 03:12:23","updated_at":"2020-08-10 03:12:23"}]]

Answer 1

您可以使用内置方法array_intersect，array_diff来获取2个数组之间的共同和不同元素

$permissions = Permission::all()->pluck('name')->toArray();
foreach ($roles as $role)
{
    $rolePermissions = $role['permissions']->pluck('name')->toArray();
    $maches = array_intersect($permissions, $rolePermissions);
    $differences = array_diff($permissions, $rolePermissions);
    //... loop $matches and $differences
}