php - 如何在 Laravel 5.2 中比较行数据

Question

我需要在 Laravel 中使用 AND 运算符检查我的表数据，并像这样查看

    if(Permission::where('status', '=', '1')->first()) AND (Permission::where('project_id', '=', '$id')->first())return view('collaborators.show')->withProject($project)->withTasks($tasks)->withFiles($files)->withComments($comments)->withCollaborators($collaborators);
else
    return('hi');

但我收到以下错误

syntax error, unexpected 'else' (T_ELSE)

Answer 1

您在 if 之后和 return 关键字之前缺少括号。

这里有适合您的语法正确的代码:

if ((Permission::where('status', '=', '1')->first()) AND (Permission::where('project_id', '=', '$id')->first())) {
    return view('collaborators.show')->withProject($project)->withTasks($tasks)->withFiles($files)->withComments($comments)->withCollaborators($collaborators);
} else {
    return 'hi';
}

<小时/>

我不确定，但这也许就是您想要实现的目标

if (Permission::where('status', 1)->where('project_id', $id)->exists()) {
    return view('collaborators.show')
        ->withProject($project)
        ->withTasks($tasks)
        ->withFiles($files)
        ->withComments($comments)
        ->withCollaborators($collaborators);
} else {
    return 'hi';
}