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laravel5.5 installation

Jun 04, 2018 am 09:32 AM
Install

This article mainly introduces the installation of laravel5.5, which has certain reference value. Now I share it with you. Friends in need can refer to it

第一步:
composer的安装方式一1.找到并进入 PHP 的安装目录(和你在命令行中执行的 php 指令应该是同一套 PHP

)。2.将 composer.phar 复制到 PHP 的安装目录下面,也就是和 php.exe 在同一级目录

。3.在 PHP 安装目录下新建一个 composer.bat 文件,并将下列代码保存到此文件中。
@php "%~dp0composer.phar" %*最后重新打开一个命令行窗口试一试执行 composer --version 看看是否正确输出版

本号。

composer的安装方式二(推荐新手先这个)
运行composerset.exe  直到成功.第二步:
修改中国镜像
composer config -g repo.packagist composer 

https://packagist.phpcomposer.com第三步:
安装laravel 命令

方法1:命令行安装
记得切换到WWW目录(安装laravel)
composer create-project laravel/laravel=5.5.* --prefer-dist初始化命令:
php artisan package:discover

php artisan key:generate

然后等待即可,网速慢.理解下,总共二十多兆


方法二:
一键安装包下载  进入laravel学院下载   下载完成放到WWW 目录即可运行


第四步:   
安装完成之后,我们进入laravel 学院.     http://laravelacademy.org/post/5671.html先介绍php artisan   进入命令行输入 php artisan 查看下 能加什么命令5.3手册

维护模式php artisan down    php artisan up    维护模式的页面 

resources/views/errors/503.blade.php

介绍目录结构

路由
中间件
操作数据库  .env目录

入门结束,其他自己看看


中间件:
可以理解为一堵墙,一堵拦截非法访问的一堵墙
路由:
可以理解为url所执行的代码,通过路由来确定它们的关系
门面:
别名,它所对应的是一个类
get
post
delete
put
等等
防止csrf的攻击,跨域请求伪造
redirect方法用来页面跳转
使用中间件三个步骤:1.创建中间件
php artisan make:middleware UserMiddleware
中间件的验证代码写在public function handle($request, Closure $next)
    {        if($request->input('status') != '0')
        {            return redirect('index');
        }        return $next($request);
    }2.注册中间件'user'=> \App\Http\Middleware\UserMiddleware::class,
按照这样的格式
在App\kernel.php   routeMiddleware属性3.应用到路由
调用路由的middleware方法
Route::get('/user', function () {    return 'middleware';
})->middleware('user');
创建控制器的方式:
php artisan make:controller UserController
路由调用控制器的方法
Route::get('/user', 'UserController@index');
操作数据库的两种方式
DB与model$users = DB::table('users')->select('name','email')->get();
查询users表的name与email字段
DB::table('users')->delete(3)
删除users表的id为3的记录
User::create($request->all());
users表创建一条新的记录$user = User::find(1);        $user->name = $request->name;        $user->save();
编辑id为1的记录的name
Copy after login

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