<?php namespace App\Http\Controllers; use App\User; use Illuminate\Http\Request; class UserController extends Controller { public function getTop10Users() { $users = User::orderBy('id', 'desc')->take(10)->get(); return $users; } } 在上面的代码中,我们使用orderBy方法按照"id...
The attachCategories() method attach the given categories to the model without touching the currently attached categories, while there's the syncCategories() method that can detach any records that's not in the given items, this method takes a second optional boolean parameter that's set detachin...
2 Select last rows in ascending order 95 Laravel: How to get last N entries from DB 2 How do I return last n records in the order of entry 13 Order by row and limit result in Laravel 5 0 Laravel - order by number of entries 0 Laravel sorting last record ...
(六)遍历指针追踪 经常我们会在视图里用@foreach来遍历数据,当你需要对其中的数据进行更多的掌控时,可以其中的$loop变量,它是@foreach内的一个内置的变量,通过$loop你可以调用其count、iteration、first、last、even、odd、depth已经更多类似属性,这对于我们掌控遍历逻辑很有用。 (七)通配符形式的View Composers 在...
$user = User::updateOrCreate( ['email' => Input::get('email')], ['first_name' => 'Test', 'last_name' => 'Test'] ); The updateOrCreate method's first argument lists the column(s) that uniquely identify records within the associated table while the second argument consists of th...
Using Where Null To Find Records With Unset Values 复制代码代码如下: $users = DB::table('users')->whereNull('updated_at')->get(); Order By, Group By, And Having 复制代码代码如下: $users = DB::table('users')->orderBy('name', 'desc')->groupBy('count')->having('count', '>'...
To get started, check out the documentation on Laravel's application starter kits.Laravel Fortify is a headless authentication backend for Laravel that implements many of the features found in this documentation, including cookie-based authentication as well as other features such as two-factor ...
For example, let's add a query condition that scopes the query to only search records that have an account_id column value of 1:'email' => Rule::unique('users')->where(fn (Builder $query) => $query->where('account_id', 1))...
Route::get('/',function(){returnview('greeting',['name'=>'James']);}); 如你所见, 传递给view辅助函数的第一个参数对应resources/views目录中视图文件的名称。第二个参数是应该可供视图使用的数据数组。在这种情况下,我们传递name变量,该变量将使用Blade syntax在视图中显示。
Using Where Null To Find Records With Unset Values 复制代码代码如下: $users = DB::table('users')->whereNull('updated_at')->get(); Order By, Group By, And Having 复制代码代码如下: $users = DB::table('users')->orderBy('name', 'desc')->groupBy('count')->having('count', '>'...