Slim php框架中的子视图(布局，模板) - Sub views (layouts, templates) in Slim php framework

我正在尝试Slim php框架

是否有可能在Slim布局或子视图?我想使用一个视图文件作为模板，变量作为其他视图单独加载的占位符。

我该怎么做呢?

filename: myview.php

<?php
class myview extends Slim_View
{
    static protected $_layout = NULL;
    public static function set_layout($layout=NULL)
    {
        self::$_layout = $layout;
    }
    public function render( $template ) {
        extract($this->data);
        $templatePath = $this->getTemplatesDirectory() . '/' . ltrim($template, '/');
        if ( !file_exists($templatePath) ) {
            throw new RuntimeException('View cannot render template `' . $templatePath . '`. Template does not exist.');
        }
        ob_start();
        require $templatePath;
        $html = ob_get_clean();
        return $this->_render_layout($html);
    }
    public function _render_layout($_html)
    {
        if(self::$_layout !== NULL)
        {
            $layout_path = $this->getTemplatesDirectory() . '/' . ltrim(self::$_layout, '/');
            if ( !file_exists($layout_path) ) {
                throw new RuntimeException('View cannot render layout `' . $layout_path . '`. Layout does not exist.');
            }
            ob_start();
            require $layout_path;
            $_html = ob_get_clean();
        }
        return $_html;
    }
}
?>

index . php示例:

<?php
require 'Slim/Slim.php';
require 'myview.php';
// instantiate my custom view
$myview = new myview();
// seems you need to specify during construction
$app = new Slim(array('view' => $myview));
// specify the a default layout
myview::set_layout('default_layout.php');
$app->get('/', function() use ($app) {
    // you can override the layout for a particular route
    // myview::set_layout('index_layout.php');
    $app->render('index.php',array());
});
$app->run();
?>

default_layout.php:

<html>
    <head>
        <title>My Title</title>
    </head>
    <body>
        <!-- $_html contains the output from the view -->
        <?= $_html ?>
    </body>
</html>

slim框架使用其他模板引擎，如Twig或Smarty，所以只要你选择一个允许子视图的模板引擎，那么它就可以工作。有关Slim中视图模板的更多信息，请查看此处。

我正在处理我的View:

class View extends 'Slim'View
{
    protected $layout;
    public function setLayout($layout)
    {
        $this->layout = $layout;
    }
    public function render($template)
    {
        if ($this->layout){
            $content =  parent::render($template);
            $this->setData(array('content' => $content));
            return parent::render($this->layout);
        } else {
            return parent::render($template);
        }
    }
}

您可以添加一些方法，如setLayoutData(..)或appendLayoutData(..)

几分钟前:

class View extends 'Slim'View
{
    /** @var string */
    protected $layout;
    /** @var array */
    protected $layoutData = array();
    /**
     * @param string $layout Pathname of layout script
     */
    public function setLayout($layout)
    {
        $this->layout = $layout;
    }
    /**
     * @param array $data
     * @throws 'InvalidArgumentException
     */
    public function setLayoutData($data)
    {
        if (!is_array($data)) {
            throw new 'InvalidArgumentException('Cannot append view data. Expected array argument.');
        }
        $this->layoutData = $data;
    }
    /**
     * @param array $data
     * @throws 'InvalidArgumentException
     */
    public function appendLayoutData($data)
    {
        if (!is_array($data)) {
            throw new 'InvalidArgumentException('Cannot append view data. Expected array argument.');
        }
        $this->layoutData = array_merge($this->layoutData, $data);
    }
    /**
     * Render template
     *
     * @param  string $template Pathname of template file relative to templates directory
     * @return string
     */
    public function render($template)
    {
        if ($this->layout){
            $content = parent::render($template);
            $this->appendLayoutData(array('content' => $content));
            $this->data = $this->layoutData;
            $template = $this->layout;
            $this->layout = null; // allows correct partial render in view, like "<?php echo $this->render('path to parial view script'); ?>"
            return parent::render($template);;
        } else {
            return parent::render($template);
        }
    }
}

With Slim

namespace Slim;
use Psr'Http'Message'ResponseInterface;
class View extends Views'PhpRenderer
{
    protected $layout;
    public function setLayout($layout)
    {
        $this->layout = $layout;
    }
    public function render(ResponseInterface $response, $template, array $data = [])
    {
        if ($this->layout){
            $viewOutput = $this->fetch($template, $data);
            $layoutOutput = $this->fetch($this->layout, array('content' => $viewOutput));
            $response->getBody()->write($layoutOutput);
        } else {
            $output = parent::render($response, $template, $data);
            $response->getBody()->write($output);
        }
        return $response;
    }
}

在布局:

<?=$data['content'];?>

你可以在你的父视图中使用:

$app = 'Slim'Slim::getInstance();
$app->render('subview.php');

如果您想在变量中捕获输出，只需使用视图的fetch()方法即可:

//assuming $app is an instance of 'Slim'Slim
$app->view()->fetch( 'my_template.php', array( 'key' => $value ) );

这是可能的。如果你不想使用任何模板引擎，如smarty或twig。如果你想只使用。php视图文件。请按照以下步骤操作。

步骤1。在项目的根目录中创建一个新目录。如模板。

步骤2。打开dependencies.php并粘贴下面的代码

$container = $sh_app->getContainer();
$container['view'] = function ($c) {
   $view = new Slim'Views'PhpRenderer('src/templates/');
   return $view;
};

步骤3。在你的控制器的方法中呈现视图代码应该是这样的。

$this->container->view->render($response,'students/index.php',['students' => $data]);