PHP code example of heimrichhannot / contao-head-bundle

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

heimrichhannot / contao-head-bundle example snippets

 $this->addSchemaOrg([
    '@type' => 'NewsArticle',
    'headline' => $newsHeadline,
    'datePublished' => $datetime->date('Y-m-d\TH:i:sP'),
]); 

use HeimrichHannot\HeadBundle\HeadTag\BaseTag;
use HeimrichHannot\HeadBundle\HeadTag\MetaTag;
use HeimrichHannot\HeadBundle\HeadTag\TitleTag;
use HeimrichHannot\HeadBundle\HeadTag\Meta\CharsetMetaTag;
use HeimrichHannot\HeadBundle\HeadTag\Meta\HttpEquivMetaTag;
use HeimrichHannot\HeadBundle\HeadTag\Meta\PropertyMetaTag;
use HeimrichHannot\HeadBundle\Manager\HtmlHeadTagManager;
use Symfony\Component\HttpFoundation\Request;

class SomeEventListener
{
    private HtmlHeadTagManager $headTagManager;

    public function updateBaseTag(Request $request): void
    {
        // Set base tag to null to remove it
        $this->headTagManager->setBaseTag(null);
        
        //Set base tag from object or url
        $this->headTagManager->setBaseTag(new BaseTag($request->getSchemeAndHttpHost()));
        $this->headTagManager->setBaseTag('https://example.org'));
    }
    
    public function updatedTitleTag(): void
    {
        // Set title to "Hello World"
        $this->headTagManager->setTitleTag('Hello World');
        
        // Set title tag from object and adjust output format
        $this->headTagManager->setTitleTag(new TitleTag('Foo Bar', '%s | {{page::rootPageTitle}}'))
        // Will output: <title>Foo Bar | My Great Website Page Title</title>
    }
    
    public function setMetaTags(): void
    {
        // Add a new meta tag. If a tag with the same name already exists, it will be overridden
        $this->headTagManager->addMetaTag(new MetaTag('author', 'John Doe'));
        
        // Get an existing tag
        $description = ($tag = $this->headTagManager->getMetaTag('og:description')) ? $tag->getContent() : '';
        
        // Remove a tag
        $this->headTagManager->removeMetaTag('twitter:site');
        
        // Create a tag for property meta tags
        $this->headTagManager->addMetaTag(new PropertyMetaTag('og:type', 'article'));
        
        // Create a http-equiv tag
        $this->headTagManager->addMetaTag(new HttpEquivMetaTag('refresh', '30'));
        
        // Set a charset tag
        $this->headTagManager->addMetaTag(new CharsetMetaTag('UTF-8'));
        
        // Create tags without class (usefull when creating tags in a loop without custom checks)
        $this->headTagManager->addMetaTag(
            $this->headTagManager->getHeadTagFactory()->createMetaTag('description', 'Lorem ipsum!')
        );
        $this->headTagManager->addMetaTag(
            $this->headTagManager->getHeadTagFactory()->createTagByName('meta_og:url', 'https://example.org')
        );
    }
    
    public function setLinkTags(): void
    {
        // Add a new link tag. If a tag with the same name already exists, it will be overridden
        $this->headTagManager->addLinkTag(new LinkTag('next', 'https://example.org?page=2'));
        
        // Get an existing tag
        $this->headTagManager->getLinkTag('prev');
        
        // Remove a tag
        $this->headTagManager->removeLinkTag('prev');
        
        // Shorthand for canonical tag
        $this->headTagManager->setCanonical('https://example.org');
    }
}

use HeimrichHannot\HeadBundle\Manager\JsonLdManager;

class ExampleController 
{
   private JsonLdManager      $jsonLdManager;

   public function __invoke() {
      $organisation = $this->jsonLdManager->getGraphForSchema(JsonLdManager::SCHEMA_ORG)->organization();
      $organisation->name('Example and Sons Ltd.');
      $organisation->url('https://example.org');
   }
}

use HeimrichHannot\HeadBundle\Helper\DcaHelper;

class HeadTagOptionsListener {
    private DcaHelper $dcaHelper;

    public function __invoke() {
        return $this->dcaHelper->getTagOptions([
            // filter: (array|null) If set, only tags fulfill given filters will be returned. See FILTER constants for available options. Default null
            'filter' => [DcaHelper::FILTER_META, DcaHelper::FILTER_TITLE],
            // skip_tags: (array) Skip specific tags. Default empty
            'skip_tag' => ['og:locale'],
        ]);
    }
}

use Contao\ContentModel;
use HeimrichHannot\HeadBundle\Manager\HtmlHeadTagManager;

class SomeEventListener {
    private HtmlHeadTagManager $headTagManager;
    
    public function __invoke(ContentModel $contentModel){
        $tag = $this->headTagManager->getHeadTagFactory()->createTagByName($contentModel->headTag);
        if ($tag) {
            $tag->setAttribute("content", $contentModel->headTagContent);
            $this->headTagManager->addTag($tag);
        }
    }
}

 $this->block('meta'); 

<meta charset="<?= $this->charset