File: /var/www/vhosts/creativefellows.nl/okaycolor.creativefellows.nl/vendor/slim/php-view/README.md
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## PHP Renderer
This is a renderer for rendering PHP view scripts into a PSR-7 Response object. It works well with Slim Framework 3.
### Cross-site scripting (XSS) risks
Note that PHP-View has no built-in mitigation from XSS attacks. It is the developer's responsibility to use `htmlspecialchars()` or a component like [zend-escaper](https://github.com/zendframework/zend-escaper). Alternatively, consider [Twig-View](https://github.com/slimphp/Twig-View).
## Installation
Install with [Composer](http://getcomposer.org):
composer require slim/php-view
## Usage with Slim 3
```php
use Slim\Views\PhpRenderer;
include "vendor/autoload.php";
$app = new Slim\App();
$container = $app->getContainer();
$container['renderer'] = new PhpRenderer("./templates");
$app->get('/hello/{name}', function ($request, $response, $args) {
return $this->renderer->render($response, "hello.php", $args);
});
$app->run();
```
## Usage with any PSR-7 Project
```php
//Construct the View
$phpView = new PhpRenderer("./path/to/templates");
//Render a Template
$response = $phpView->render(new Response(), "hello.php", $yourData);
```
## Template Variables
You can now add variables to your renderer that will be available to all templates you render.
```php
// via the constructor
$templateVariables = [
"title" => "Title"
];
$phpView = new PhpRenderer("./path/to/templates", $templateVariables);
// or setter
$phpView->setAttributes($templateVariables);
// or individually
$phpView->addAttribute($key, $value);
```
Data passed in via `->render()` takes precedence over attributes.
```php
$templateVariables = [
"title" => "Title"
];
$phpView = new PhpRenderer("./path/to/templates", $templateVariables);
//...
$phpView->render($response, $template, [
"title" => "My Title"
]);
// In the view above, the $title will be "My Title" and not "Title"
```
## Sub-templates
Inside your templates you may use `$this` to refer to the PhpRenderer object to render sub-templates.
## Rendering in Layouts
You can now render view in another views called layouts, this allows you to compose modular view templates
and help keep your views DRY.
Create your layout `./path/to/templates/layout.php`.
```phtml
<html><head><title><?=$title?></title></head><body><?=$content?></body></html>
```
Create your view template `./path/to/templates/hello.php`.
```phtml
Hello <?=$name?>!
```
Rendering in your code.
```php
$phpView = new PhpRenderer("./path/to/templates", ["title" => "My App"]);
$phpView->setLayout("layout.php");
//...
$phpview->render($response, "hello.php", ["title" => "Hello - My App", "name" => "John"]);
```
Response will be
```html
<html><head><title>Hello - My App</title></head><body>Hello John!</body></html>
```
Please note, the $content is special variable used inside layouts to render the wrapped view and should not be set
in your view paramaters.
## Exceptions
`\RuntimeException` - if template does not exist
`\InvalidArgumentException` - if $data contains 'template'