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webman-視圖-twig視圖模板的使用

发布时间：2022-01-20 23:29:19编辑：雪饮阅读（）

webman中除了内置的是Raw視圖，他還支持twig視圖。

首先需要謹記必須在start.php同目錄執行twig安裝命令如：

[root@localhost webman]# /usr/local/php734/bin/php -c /usr/local/php734/lib/php.ini /usr/bin/composer require twig/twig

Do not run Composer as root/super user! See https://getcomposer.org/root for details

Continue as root/super user [yes]? yes

Using version ^3.3 for twig/twig

./composer.json has been updated

Running composer update twig/twig

Loading composer repositories with package information

Updating dependencies

Lock file operations: 3 installs, 0 updates, 0 removals

- Locking symfony/polyfill-ctype (v1.24.0)

- Locking symfony/polyfill-mbstring (v1.24.0)

- Locking twig/twig (v3.3.7)

Writing lock file

Installing dependencies from lock file (including require-dev)

Package operations: 11 installs, 0 updates, 0 removals

- Downloading symfony/deprecation-contracts (v2.5.0)

- Downloading psr/http-client (1.0.1)

- Downloading ralouphie/getallheaders (3.0.3)

- Downloading psr/http-factory (1.0.1)

- Downloading guzzlehttp/psr7 (2.1.0)

- Downloading guzzlehttp/promises (1.5.1)

- Downloading guzzlehttp/guzzle (7.4.1)

- Downloading symfony/polyfill-mbstring (v1.24.0)

- Downloading symfony/polyfill-ctype (v1.24.0)

- Downloading twig/twig (v3.3.7)

Failed downloading twig/twig, trying the next URL (404: The "https://mirrors.aliyun.com/composer/dists/twig/twig/8f168c6ffa3ce76d1786b3cd52275424a3fc675b.zip" file could not be downloaded (HTTP/1.1 404 Not Found))

- Downloading twig/twig (v3.3.7)

- Installing symfony/deprecation-contracts (v2.5.0): Extracting archive

- Installing psr/http-message (1.0.1): Extracting archive

- Installing psr/http-client (1.0.1): Extracting archive

- Installing ralouphie/getallheaders (3.0.3): Extracting archive

- Installing psr/http-factory (1.0.1): Extracting archive

- Installing guzzlehttp/psr7 (2.1.0): Extracting archive

- Installing guzzlehttp/promises (1.5.1): Extracting archive

- Installing guzzlehttp/guzzle (7.4.1): Extracting archive

- Installing symfony/polyfill-mbstring (v1.24.0): Extracting archive

- Installing symfony/polyfill-ctype (v1.24.0): Extracting archive

- Installing twig/twig (v3.3.7): Extracting archive

> support\Plugin::install

Generating autoload files

10 packages you are using are looking for funding.

Use the `composer fund` command to find out more!

否則基本你安裝了twig，并且配置了twig，最後實例啓動並訪問時候有可能報錯Class 'Twig\Environment' not found 之類的錯誤。

筆者這裏就犯了這個低級錯誤。

安裝好之後在config/view.php中配置如：

<?php

/**

* This file is part of webman.

* Licensed under The MIT License

* For full copyright and license information, please see the MIT-LICENSE.txt

* Redistributions of files must retain the above copyright notice.

* @author walkor<walkor@workerman.net>

* @copyright walkor<walkor@workerman.net>

* @link http://www.workerman.net/

* @license http://www.opensource.org/licenses/mit-license.php MIT License

use support\view\Raw;

use support\view\Twig;

use support\view\Blade;

use support\view\ThinkPHP;

return [

//'handler' => Raw::class

'handler'=>Twig::class

];

這裏我們新增了twig視圖的啓用。

接下來我們config/route.php中新增一條路由到Foo控制器的路由：

<?php

/**

* This file is part of webman.

* Licensed under The MIT License

* For full copyright and license information, please see the MIT-LICENSE.txt

* Redistributions of files must retain the above copyright notice.

* @author walkor<walkor@workerman.net>

* @copyright walkor<walkor@workerman.net>

* @link http://www.workerman.net/

* @license http://www.opensource.org/licenses/mit-license.php MIT License

use Webman\Route;

Route::get('/blog/index', [app\controller\Foo::class, 'index'])->middleware([app\middleware\AccessControlTest::class]);

這裏中間件其實無所謂配置或不配置了，能達到Foo控制器中index方法即可。

接下來\app\controller\Foo.php控制器中實現index方法調用一個view視圖層：

<?php

namespace app\controller;

use support\Request;

class Foo

{

/**

* 该方法会在请求前调用

public function beforeAction(Request $request)

{

echo 'beforeAction';

// 若果想终止执行Action就直接返回Response对象，不想终止则无需return

// return response('终止执行Action');

}

/**

* 该方法会在请求后调用

public function afterAction(Request $request, $response)

{

echo 'afterAction';

// 如果想串改请求结果，可以直接返回一个新的Response对象

// return response('afterAction');

}

public function index(Request $request)

{

return view('user/hello', ['name' => 'webman']);

}

public function login(Request $request)

{

$session = $request->session();

$session->set('userinfo', ["user_name"=>"kasumi"]);

return response('login success');

}

public function loginPage(Request $request){

return response("this is loginPage \n");

}

接下來咱們的視圖\app\view\user\hello.html的實現：

<!doctype html>

<html>

<head>

<title>webman</title>

</head>

<body>

hello ggg {{ name }}

</body>

</html>

這裏{{變量名}}就是twig模板所用的一個簡單的模板語法。

那麽最後就是以上修改來修改去的運行時（及被訪問）：

[root@localhost webman]# /usr/local/php734/bin/php -c /usr/local/php734/lib/php.ini start.php start

Workerman[start.php] start in DEBUG mode

----------------------------------------- WORKERMAN -----------------------------------------

Workerman version:4.0.26 PHP version:7.3.4

------------------------------------------ WORKERS ------------------------------------------

proto user worker listen processes status

tcp root webman http://0.0.0.0:8787 4 [OK]

tcp root monitor none 1 [OK]

---------------------------------------------------------------------------------------------

Press Ctrl+C to stop. Start success.