added possability to parse twig result in a given mjml file

README.md

@@ -56,6 +56,30 @@ $html = $twig->render('newsletter.mjml.twig', [
 
 You can now start using MJML in any Twig template.
 
+## Alternate Possability
+This works on some Serversystems a little bit better and on mean time you can debug the different Steps from twig -> mjml -> html
+
+```php
+<?php
+require_once 'vendor/autoload.php';
+
+use \Qferrer\Mjml\Renderer\ApiRenderer;
+use \Qferrer\Mjml\Renderer\BinaryRenderer;
+use \Qferrer\Mjml\Twig\MjmlExtension;
+
+$loader = new \Twig\Loader\FilesystemLoader(__DIR__ . '/templates');
+$twig = new \Twig\Environment($loader);
+
+
+$tmpRenderFile = __DIR__ . "/templates/newsletter.mjml";    //Where the twig result will get parsed into
+$renderer = new \Qferrer\Mjml\Renderer\BinaryRenderer(__DIR__ . '/node_modules/.bin/mjml', $tmpRenderFile);
+$twig->addExtension(new MjmlExtension($renderer, $tmpRenderFile));
+
+//returns the content of __DIR__ . "/templates/newsletter.mjml.html created by the new BinaryRenderer PR https://github.com/qferr/mjml-php/pull/25
+$html = $twig->render('newsletter.mjml.twig', [
+    'username' => 'Quentin'
+]);
+
 Integrating in Symfony
 ----------------------
 Register the MJML extension as a service and tag it with `twig.extension`.

src/Mjml/Twig/MjmlExtension.php

@@ -16,14 +16,21 @@ class MjmlExtension extends AbstractExtension
      */
     protected $renderer;
 
+    /**
+     * @var string
+     */
+    private $mjmlFilePath;
+
     /**
      * MjmlExtension constructor.
      *
      * @param RendererInterface $renderer
+     * @param string $mjmlFilePath if set, reads this mjml file and creates a mjml.html file which will be read and return on render
      */
-    public function __construct(RendererInterface $renderer)
+    public function __construct(RendererInterface $renderer, string $mjmlFilePath = "")
     {
         $this->renderer = $renderer;
+        $this->mjmlFilePath = $mjmlFilePath;
     }
 
     /**
@@ -45,6 +52,16 @@ public function getFilters(): array
      */
     public function render(string $content): string
     {
+        if ($this->mjmlFilePath !== '') {
+            $this->writeInFile($content);
+        }
         return $this->renderer->render($content);
     }
+
+    private function writeInFile(string $content)
+    {
+        $myfile = fopen($this->mjmlFilePath, "w") or die("Unable to open file!");
+        fwrite($myfile, $content);
+        fclose($myfile);
+    }
 }