Saving dynamically added inputs (array in array)

Hi, I have 1 form which is submitting data for 3 different tables

1 form:

• saves info into User table
• saves info into Ico table
• saves info into Team table

Saving data into User and Ico table is working fine but now i try to save data into Team table the problem is that the team section of the form is contains dynamically added input fields so when i dd the requested $data in my RegisterController.php i have thees:

My question is how to save teamname , teamrole, and teamlinkedin into my team table the are Array inside an Array and i dont know how to extract the data from them.

array:12 [▼
  "_token" => "Ox7pnUbXTxoc9ppMM7mgHJQAyIUAkjEvUv8NaXCU"
  "username" => "Username"
  "email" => "[email protected]"
  "password" => "userpassword"
  "password_confirmation" => "userpassword"
  "iconame" => "ICO project name"
  "description" => "<p>This is the description of the ICO project .....</p>"
  "teamname" => array:2 [▼
    0 => "Team member name 1"
    1 => "Team member name 2"
  ]
  "teamrole" => array:2 [▼
    0 => "Developer"
    1 => "Developer 2"
  ]
  "teamlinkedin" => array:2 [▼
    0 => "www.linkedin.com/teammemeber1profile"
    1 => "www.linkedin.com/teammember2profile"
  ]
  "customLogo" => UploadedFile {#561 ▶}
  "teamprofpic" => array:2 [▼
    0 => UploadedFile {#563 ▶}
    1 => UploadedFile {#564 ▶}
  ]
]

this is the way i try to save the info into my database:

    protected function create( array $data)
    {
dd($data);

      $user = new User();
            $user->name = $data['username'];
            $user->email = $data['email'];
            $user->password = Hash::make($data['password']);
            $user->save();
            $user->attachRole('icouser');

            $request = request();
            $logo = $request->file('customLogo');
            $logoname = uniqid($user->id."_").".".$logo->getClientOriginalExtension();

            Storage::disk('s3')->put($logoname, File::get($logo), 'public');
            $url = Storage::disk('s3')->url($logoname);

      $ico = new Ico();
            $ico->iconame = $data['iconame'];
            $ico->user_id = $user->id;
            $ico->description = $data['description'];
            $ico->logo = $url;
            $ico->save();

----------->code above works perfectly,, code below does not....

foreach ($teamname as $teamnames) {
  foreach ($teamrole as $teamroles) {
    foreach ($teamlinkedin as $teamlinkedins) {
      $team = new Team();
            $team->user_id = $user->id;
            $team->tmembername = $teamnames;
            $team->tmembertile = $teamroles;
            $team->tmemberlinkedin = $teamlinkedins;

    }
  }
    $team->save();
}


return $user;

    }