How to Replace tinymce with my own custom textarea

Let’s say it’s Page for example you want to remove all editors from. You would need to remove post type support for it:

remove_post_type_support( 'page', 'editor' );

Then you could create your own Metabox or use a hook like edit_form_after_title to add in your textarea.

Finally, you could name it post_content or use a hook like wp_insert_post_data to add in your content to post_content after sanitizing it.

@howdy_mcgee What should I name post_content ?

@adetona Please do not create new topics for the same thing. Duplicates make it harder for volunteers to support you, add new information here.

Alright. Thank you, Jan.