Php laravel TokenMismatchException request - php

Question

am try to send request by post form from but error TokenMismatchException
here is my controller code
public function postSaveedit(Request $request) {
$var1 = $request->input('title'); //name on the form
$var2 = $request->input('meaning'); //name on the form
$words = User::where("title", $var1)->update(array("meaning" => $var2));
return view('dict.watch', compact('words'));
}
here is view code.
<form class="form-horizontal" role="form" method="POST" action="{{ URL::to('index/saveedit') }}">
<div class="form-group">
<label class="col-lg-3 control-label">Title:</label>
<div class="col-lg-8">
<input class="form-control" value='{{ $words->first()->title }}' type="text" name="title">
</div>
</div>
<div class="form-group">
<label class="col-lg-3 control-label">Meaning:</label>
<div class="col-lg-8">
<input class="form-control" value="{{ $words->first()->meaning }}" type="text" name="meaning">
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label"></label>
<div class="col-md-8">
<input class="btn btn-primary" value="Save Changes" type="submit">
<span></span>
</div>
</div>
</form>
thnak you for your help

Answer 1

From https://laravel.com/docs/master/routing:
Laravel automatically generates a CSRF "token" for each active user
session managed by the application. This token is used to verify that
the authenticated user is the one actually making the requests to the
application.
Anytime you define a HTML form in your application, you should include
a hidden CSRF token field in the form so that the CSRF protection
middleware will be able to validate the request. To generate a hidden
input field _token containing the CSRF token, you may use the
csrf_field helper function
Just add this line inside your form
<form class="form-horizontal" role="form" method="POST" action="{{ URL::to('index/saveedit') }}">
<input type="hidden" name="_token" value="{{ csrf_token(); }}">
<div class="form-group">
<label class="col-lg-3 control-label">Title:</label>
<div class="col-lg-8">
<input class="form-control" value='{{ $words->first()->title }}' type="text" name="title">
</div>
</div>
<div class="form-group">
<label class="col-lg-3 control-label">Meaning:</label>
<div class="col-lg-8">
<input class="form-control" value="{{ $words->first()->meaning }}" type="text" name="meaning">
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label"></label>
<div class="col-md-8">
<input class="btn btn-primary" value="Save Changes" type="submit">
<span></span>
</div>
</div>
</form>