PHP：laravel自定义分页page查询方法

<?php
/**
 * Set the limit and offset for a given page.
 *
 * @param  int  $page
 * @param  int  $perPage
 * @return $this
 */
public function forPage($page, $perPage = 15)
{
    return $this->offset(($page - 1) * $perPage)->limit($perPage);
}

<?php
namespace App\Providers;
use Illuminate\Database\Query\Builder;
use Illuminate\Support\ServiceProvider;
class BuilderServiceProvider extends ServiceProvider
{
    /**
     * Register services.
     *
     * @return void
     */
    public function register()
    {
        //
    }
    /**
     * Bootstrap services.
     *
     * @return void
     */
    public function boot()
    {
        // 分页
        Builder::macro('page', function ($page = 1, $size = 10) {
            return $this->offset(($page - 1) * $size)->limit($size);
        });
    }
}

<?php
return [
  // 省略其他配置
    'providers' => [
        App\Providers\BuilderServiceProvider::class,
    ],
];