Laravel Collection Macros

CollectionServiceProvider.php

<?php

/**
 * Copyright © 2015-2016 »jd« powered. All rights reserved.
 *
 * @copyright Copyright © 2015-2016 »jd« powered
 * @link http://jd-powered.net
 * @author Jonas Döbertin <hello@jd-powered.net>
 */
namespace App\Providers;

use Illuminate\Support\Collection;
use Illuminate\Support\ServiceProvider;

class CollectionServiceProvider extends ServiceProvider
{
    /**
     * Register
     */
    public function register()
    {
        //
    }

    /**
     * Boot the collection extensions for the application.
     */
    public function boot()
    {
        /**
         * Get the mode value of a given key.
         *
         * @param  string|null  $key
         * @return mixed
         */
        Collection::macro('mode', function ($key = null) {
            if (is_null($key)) {
                $values = array_count_values($this->values()->toArray());
            } else {
                $values = array_count_values($this->pluck($key)->values()->toArray());
            }

            return array_search(max($values), $values);
        });

        /**
         * Perform a regular expression search and replace.
         *
         * @param string $pattern
         * @param string $replacement
         * @param string|null $key
         * @return mixed
         */
        Collection::macro('replace', function ($pattern, $replacement, $key = null) {
            return $this->transform(function ($item) use ($pattern, $replacement, $key) {
                if (!is_null($key)) {
                    $item->{$key} = preg_replace($pattern, $replacement, $item->{$key});
                } else {
                    $item = preg_replace($pattern, $replacement, $item);
                }

                return $item;
            });
        });
    }
}