Prevent page from displaying

Use the date_query parameter in a query1. Make sure you query posts that are both the age you require and currently public. Set the post status to private2 with the wp_insert_post()3 function. Here’s an example from the codex which should give you an idea for how to query for posts older than a certain date:1 … Read more

custom page or standalone page?

As Andrew stated, a custom page/template would be the most efficient way to display the calculator. You can leave this as a simple page, displaying just your calculator, or you can add in “the loop” below the calculator to display additional text which would be easily edited in WordPress.

Execute php in pages

If you have a page, and need to run PHP code that isn’t in your standard page template, you can: Use a custom page template Create a template with page-pagename.php Implement and use a shortcode All three are valid and suitable methods for doing this, however, do not: Try to let users place actual PHP … Read more

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