Case insensitive 'where' filter for Laravel Collections

macro.php

<?php

 /**
 * $collection = collect([
 *   [
 *      'name' => 'Chris'
 *   ],
 *   [
 *      'name' => 'Monica'
 *   ]
 * ]);
 * 
 * $collection->where('name', 'chris');
 * // result: null
 * 
 * If you want a case insensitive 'where' filter, 
 * add this to your AppServiceProvider's boot method
 *
 * usage: 
 * $collection->whereCaseInsensitive('name', 'chris');
 * // result: ['name' => 'Chris']
 *
 */

\Illuminate\Support\Collection::macro('whereCaseInsensitive', function (string $field, string $search) {
  return $this->filter(function ($item) use ($field, $search) {
    return strtolower($item[$field]) == strtolower($search);
  });
});