Array to string conversion using laravel - laravel

Question

I am trying to send a multi user-id into the database when I select users from the checkbox then I click to submit so I face error Array to string conversion how can I resolve this issue? please help me thanks.
please see error
https://flareapp.io/share/17DKWRPv
controller
public function adduseraction(REQUEST $request)
{
$useradd=$request->get('userid');
$checkid=$request->get('multiusersid');
$user=Users_permissions::create([
'user_id'=>$useradd,
'user_Access_id'=> $checkid
]);
$user->save();
}
html view
<div class="card card-success">
<div class="card-header">
<h3 class="card-title">Users Permission </h3>
</div>
<br>
<form action="{{route('adduseraction')}}" method="post">
{{ csrf_field() }}
<div class="col-sm-4">
<select name="userid" class="form-control">
#foreach($users as $user)
<option value="{{$user->id}}">{{$user->name}}</option>
#endforeach
</select>
</div>
<div class="card-body">
<!-- Minimal style -->
<div class="row">
#foreach($users as $user)
<div class="col-sm-2">
<div class="form-check">
<input type="checkbox" name="multiusersid[]" value="{{$user->id}}" class="form-check-input" >
<h5 style="position:relative;left:10px;">{{$user->name}}</h5>
</div>
<!-- checkbox -->
</div>
#endforeach
</div>
<!-- /.card-body -->
</div>
<div class="card-footer">
<button type="submit" name="btnsubmit" class="btn btn-primary col-md-2
center">Submit</button>
</div>
</form>
</div>
<!-- /.content-wrapper -->
Route
Route::post('adduseraction','AdminController#adduseraction')->name('adduseraction');
** current status **
{"_token":"4Z3ISznqKFXTMcpBKK5tUgemteqxuJjQpKF8F0Ma","userid":"6","multiusersid":["2","5","7"],"btnsubmit":null}

Answer 1

use implode($checkid, ',');
public function adduseraction(REQUEST $request)
{
$useradd=$request->get('userid');
$checkid=$request->get('multiusersid');
$user=Users_permissions::create([
'user_id'=>$useradd,
'user_Access_id'=> implode($checkid, ',');
]);
}
Change in your Users_permissions model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Users_permissions extends Model
{
protected $table = 'userspermissions';
protected $fillable = [
'user_id','user_Access_id'
];
}

Answer 2

Here is your solution
public function adduseraction(REQUEST $request)
{
$useradd=$request->get('userid');
$checkid=implode(",", $request->get('multiusersid'));
Users_permissions::create([
'user_id'=>$useradd,
'user_Access_id'=> $checkid
]);
}

Answer 3

It is expecting a string and you are passing an array of ids. You may want to change the database to json or do json_ecode(checkid). Which will stringify your array. then you can store. However, remember you will need to convert it back with typecasting or manually doing it.
example:
public function adduseraction(REQUEST $request)
{
$useradd=$request->get('userid');
$checkid=$request->get('multiusersid');
$user=Users_permissions::create([
'user_id'=>$useradd,
'user_Access_id'=> json_encode($checkid)
]);
// $user->save(); // yes obviously not needed
}