About Laravel
Laravel is a web application framework with expressive, elegant syntax. We believe development must be an enjoyable, creative experience to be truly fulfilling. Laravel attempts to take the pain out of development by easing common tasks used in the majority of web projects, such as:
- Simple, fast routing engine.
- Powerful dependency injection container.
- Multiple back-ends for session and cache storage.
- Expressive, intuitive database ORM.
- Database agnostic schema migrations.
- Robust background job processing.
- Real-time event broadcasting.
Laravel is accessible, yet powerful, providing tools needed for large, robust applications. A superb combination of simplicity, elegance, and innovation give you tools you need to build any application with which you are tasked.
Learning Laravel
Laravel has the most extensive and thorough documentation and video tutorial library of any modern web application framework. The Laravel documentation is thorough, complete, and makes it a breeze to get started learning the framework.
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Contributing
Thank you for considering contributing to the Laravel framework! The contribution guide can be found in the Laravel documentation.
Security Vulnerabilities
If you discover a security vulnerability within Laravel, please send an e-mail to Taylor Otwell at [email protected]. All security vulnerabilities will be promptly addressed.
License
The Laravel framework is open-sourced software licensed under the MIT license.
1、增加了cache helper function
cache(['user.votes'=>[12,13]],30);
cache('user.votes'); [12,13,]
2、DB::table() 查找出来的数据是collection
5.3之前查找出来的是数组 DB::table('users')->get();返回数组
DB::table('users')->get();返回Collection Illuminate\Support\Collection {#711
all: [
{#712
+"id": 1,
+"name": "Nora Jast",
+"email": "[email protected]",
+"password": "$2y$10$pFjPN4sHSGjtXOltrXup9.JEnvg5Mq3knm5NWV6glZJ4axjcZQ
g6i",
+"remember_token": "nq8t4oOQVo",
+"created_at": "2018-02-01 06:31:23",
+"updated_at": "2018-02-01 06:31:23",
},
{#714
+"id": 2,
+"name": "Mrs. Katrina Schoen",
+"email": "[email protected]",
+"password": "$2y$10$pFjPN4sHSGjtXOltrXup9.JEnvg5Mq3knm5NWV6glZJ4axjcZQ
g6i",
+"remember_token": "fifMmuGKPS",
+"created_at": "2018-02-01 06:31:24",
+"updated_at": "2018-02-01 06:31:24",
},
{#715
+"id": 3,
+"name": "Ms. Roslyn Gleason",
+"email": "[email protected]",
+"password": "$2y$10$pFjPN4sHSGjtXOltrXup9.JEnvg5Mq3knm5NWV6glZJ4axjcZQ
g6i",
+"remember_token": "i7QBV2VVWi",
+"created_at": "2018-02-01 06:31:24",
+"updated_at": "2018-02-01 06:31:24",
},
],
}
DB::table('users')->get()->all();返回数组 [
{#713
+"id": 1,
+"name": "Nora Jast",
+"email": "[email protected]",
+"password": "$2y$10$pFjPN4sHSGjtXOltrXup9.JEnvg5Mq3knm5NWV6glZJ4axjcZQg6
i",
+"remember_token": "nq8t4oOQVo",
+"created_at": "2018-02-01 06:31:23",
+"updated_at": "2018-02-01 06:31:23",
},
{#715
+"id": 2,
+"name": "Mrs. Katrina Schoen",
+"email": "[email protected]",
+"password": "$2y$10$pFjPN4sHSGjtXOltrXup9.JEnvg5Mq3knm5NWV6glZJ4axjcZQg6
i",
+"remember_token": "fifMmuGKPS",
+"created_at": "2018-02-01 06:31:24",
+"updated_at": "2018-02-01 06:31:24",
},
{#716
+"id": 3,
+"name": "Ms. Roslyn Gleason",
+"email": "[email protected]",
+"password": "$2y$10$pFjPN4sHSGjtXOltrXup9.JEnvg5Mq3knm5NWV6glZJ4axjcZQg6
i",
+"remember_token": "i7QBV2VVWi",
+"created_at": "2018-02-01 06:31:24",
+"updated_at": "2018-02-01 06:31:24",
},
]
3、loop 变量的使用（https://d.laravel-china.org/docs/5.3/blade）
当循环时，你可以在循环内访问 $loop 变量。这个变量可以提供一些有用的信息，比如当前循环的索引，当前循环是不是首次迭代，又或者当前循环是不是最后一次迭代：
@foreach($users as $user)
@if($loop->first)
This is the first iteration.
@endif
@if($loop->last)
This is the last iteration.
@endif
This is user{{$user->id}}
@endforeach
如果你是在一个嵌套的循环中，你可以通过使用 $loop 变量的 parent 属性来获取父循环中的 $loop 变量：
@foreach($usersas$user)@foreach($user->postsas$post)@if($loop->parent->first)This is first iteration of theparentloop.@endif@endforeach@endforeach
$loop 变量也包含了其它各种有用的属性：
属性描述
$loop->index 当前循环所迭代的索引，起始为 0。
$loop->iteration 当前迭代数，起始为 1。
$loop->remaining 循环中迭代剩余的数量。
$loop->count 被迭代项的总数量。
$loop->first 当前迭代是否是循环中的首次迭代。
$loop->last 当前迭代是否是循环中的最后一次迭代。
$loop->depth 当前循环的嵌套深度。
$loop->parent 当在嵌套的循环内时，可以访问到父循环中的 $loop 变量。
4、分页
默认情况下，渲染显示分页链接使用 Bootstrap CSS 框架。不过，如果你不使用 Bootstrap 你可以自由定义您自己的视图来呈现这些链接，当我们在分页实例中调用 links 方法，将视图名称传递给方法的第一个参数：
{{$paginator->links('view.name')}}
自定义分页视图的最简单的方法是通过 vendor:publish 命令创建到 resources/views/vendor 目录：
php artisan vendor:publish--tag=laravel-pagination
这个命令将会在 resources/views/vendor/pagination 目录中创建视图。default.blade.php 文件为默认的分页模板，你可以编辑这个模板以修改分页的 HTML 样式。
5、使用 mailable 发送邮件
使用 php artisan make:mail WelcomeToLaravel 生成mailables
在app/Mail 下生成class WelcomeToLaravel 该类继承 Mailable
在class WelcomeToLaravel 下的function build()添加视图路径 public function build(){
return $this->view('email.welcome');
}
在.env 文件中配置
MAIL_DRIVER=smtp
MAIL_HOST=smtp.qq.com
MAIL_PORT=25
MAIL_USERNAME=[email protected]
MAIL_PASSWORD=tsjlobixo
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=[email protected]
MAIL_FROM_NAME=LaraBBS
路由文件：
Route::get('/sendMail',function(){ \Illuminate\Support\Facades\Mail::to('[email protected]')->send(new \App\Mail\WelcomeToLaravel());
});
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