title

This code solved my problem. function digitSix() { //some codes here; $var = “this is custom title”; add_filter( ‘pre_get_document_title’, function( $var ) use ( $var ) { return $var; }, 20 ); return $someContent; } add_shortcode(“i_digit6”, “digitSix”);

The simplest way to do it is to give the post an empty string as title. This means whenever your title is shown it will not contain anything, and will not output anything, except an empty tag. Furthermore, you can choose not to render that tag at all using an appropriate CSS selector + ::empty. … Read more

Your best bet may be to use existing WordPress filters to modify your page title. For your needs, the the_title() filter would probably be your best best. Here’s a link to a pretty good tutorial on using it.

How do you change the title of the Edit Post page?

Remove title bar from post-new.php

It’s because you’re not using the filter correctly. The the_title filter passes the title to be filtered as the $title argument, but you’re overwriting it with this code: global $post; $id = ($post->ID); $title = get_post( $id )->post_title; That code’s completely unnecessary because the title is already available in your function: function max_title_length( $title ) … Read more