Adding dynamic data in head [duplicate]

Question

Im building a Social module aand one of the features is that the users can add their own Meta Cards like twitter:cards and opengraph data.

At the moment the user inputs their meta data into a simple text box like the cms page content box and the data outputs fine except dynamic values.

My question is how can i echo dynamic data in these meta tags in the head? e.g the current products name and description.

Obviously i don't want to save php in the db and it will just print the php anyway.I have also tried to define a block and template and a cms variable in the cms content but this again just outputs the block/variable declaration in the head instead of the value it should return.

Any ideas would be great.

Thanks

EDIT Here is what currently outputs in the head:

<meta property="og:site_name" content="<?php echo Mage::app()->getStore()->getName();?>" />
<meta property="og:title" content="<?php echo $this->getTitle(); ?>" />
<meta property="og:description" content="<?php echo $this->getDescription(); ?>" />
<meta property="og:url" content="<?php echo Mage::helper('core/url')->getCurrentUrl(); ?>" />

Where the example PHP is i need to replace with data.

EDIT

This is not a duplicated question. The users define the content in my use case therefore a static template will not work as defined in the links duplicated post.

Answer 1

Magento Templates support variables, so what you need to do is, pass all the stuff you want into the cms block, then you can use {{product.id}}, etc.

Checkout \Mage_Sales_Model_Order::sendNewOrderEmail so around app/code/core/Mage/Sales/Model/Order.php:1315 you see how this works for emails. Afaik works this the same way for cms blocks, but I'm not sure, just check it out.

You can see here $processor = $helper->getBlockTemplateProcessor(); how this works \Mage_Cms_Block_Block::_toHtml. Happy digging.

If you have more problems, post another question.