如何使用Laravel表单模型绑定数组作为名称属性？

I want to use form model binding in Laravel. The following (simplified) example works fine:

{{ Form::model($user, array('class'=>'form-horizontal')) }}
    {{ Form::token() }}

    {{ Form::label('email', 'Email Address') }}
    {{ Form::text('email') }}
{{ Form::close() }}

However, I want to use arrays in the name attributes, as is pretty standard nowadays. In other words, have user[email] as the field name, so that I get all the form elements in one array in the backend.

Is this possible with model binding? When I use {{ Form::text('user[email]') }} the email does not get filled in. I tried adding array('user'=>$user) in the Form::model function in case it needed a nested value, but no luck.

Form::model(array('user' => $user)) is the correct solution, BUT unfortunately the implementation of form model binding is pretty bad as it does not easily work on a nested, mixed set of arrays and objects. See https://github.com/laravel/framework/pull/5074

You could try Form::model(array('user' => $user->toArray())) or Form::model((object) array('user' => $user)).

You could do something like this assuming that you would have a single $user and multiple $types

Form::macro('userTypes', function($user,$types)
{
    foreach ($types as $type) {
        $concat = $user . "_" . $type;
        return '<input type="{$type}" name="{$concat}">';
    }
});

And customize the output with your form style, even adding more complexity to the function might be required.

And then simply calling it for example

$user = "johndoe";
$types = array("email","text");
Form::userTypes($user,$types);

That would result in

<input type="email" name="johndoe_email">
<input type="text" name="johndoe_phone">

If you want to do it in a single line and assuming that you would have a single $user and a single$type you could do something like

Form::macro('userType', function($user,$type)
{
        return '<input type="{$type}" name="{$user[$type]}">';
});

And with the call

$user = [ "mail" => "some_mail_value" ];
Form::userType($user,"mail");

Would result in

<input type="mail" name="some_mail_value">

Or perhaps you'd like something that would work with a single $user key-value array as :

Form::macro('userType', function($user)
{       
        $keys = array_keys($user);
        foreach ($keys as $key => $value) {
            return '<input type="{$key}" name="{$value}">';
        }
});

And with the call

$user = ["mail" =>  "mail_value" , "text" => "text_value"];
Form::userType($user);

That would result in

<input type="mail" name="mail_value">
<input type="text" name="text_value">

And finally I didn't find a direct way to do it with default form model binding, as It requires the field name to be the same as the model attribute, but you could do a workaround as

Form::macro('customBind', function($user_model,$type)
{       
    return '<input type={$type} name="user[{$type}]" value="{$user_model->$type}">';
});

And then

$user = new User();
$user->email = "johndoe@gmail.com";

Form::customBind($user,"email");

Which would produce something like

<input type="email" name="user[email]" value="johndoe@gmail.com">

The takeaway point is that basically the solution to your problem is creating a Macro, I have provided some workarounds on this but you will need to refine this to your specific needs.