php - How to validate phone number in laravel 5.2? -

i want validate user input phone number number should 11 , started 01 , value field should number only. how do using laravel validation?

here controller:

  public function saveuser(request $request){         $this->validate($request,[             'name' => 'required|max:120',             'email' => 'required|email|unique:users',             'phone' => 'required|min:11|numeric',             'course_id'=>'required'             ]);          $user = new user();         $user->name=  $request->input(['name']);         $user->email=  $request->input(['email']);         $user->phone=  $request->input(['phone']);         $user->date = date('y-m-d');         $user->completed_status = '0';         $user->course_id=$request->input(['course_id']);         $user->save();        return redirect('success');      } 

one possible solution use regex.

'phone' => 'required|regex:/(01)[0-9]{9}/' 

this check input starts 01 , followed 9 numbers. using regex don't need numeric or size validation rules.

if want reuse validation method else where, idea create own validation rule validating phone numbers.

docs: custom validation

in appserviceprovider's boot method:

validator::extend('phone_number', function($attribute, $value, $parameters) {     return substr($value, 0, 2) == '01'; }); 

this allow use phone_number validation rule anywhere in application, form validation be:

'phone' => 'required|numeric|phone_number|size:11' 

in validator extension check if $value numeric , 11 characters long.