Laravel macro for returning validation errors to front end using Form class

validationErrorMacro.php

<?php
/**
* Bootstrap macros in Service Provider.
*
* @return void
*/
public function boot()
{
    // Build form error macro to easily set inline error labels.
    Form::macro('errorMessage', function($field) {
        // Get error array from session.
        $errors = Session::get('errors');

        // Return HTML for field if error exists.
        if ($errors && $errors->has($field)) {
            $message = $errors->first($field);
            return "<span class='label label-danger'>{$message}</span>";
        }
    });
}

// Usage in blade template:
{!! Form::text('field_name', null, ['class' => 'form-control', 'placeholder' => 'Field Name']) !!}
{!! Form::errorMessage('field_name') !!}