Kirby CMS British Pounds Sterling (GBP) Currency Field Method

methods.php

<?php
// This field method for Kirby adds a method called GBP (Since extended to gbpsmall or gbplarge)
// Use it like this
// echo $page->price()->gbplarge()

// This example is intended for large figures such as £100,000 or £5,000, there are no decimal places
field::$methods['gbplarge'] = function($field) {
  return '£' . number_format($field->value, 0, '.' , ',' );
};

// This example is intended for smaller figures such as £99.99 or £2.99, there are two decimal places
field::$methods['gbpsmall'] = function($field) {
  return '£' . number_format($field->value, 2, '.' , ',' );
};