How to check if current admin page is Gutenberg editor? [duplicate]
In 5.0 new function was introduced (docs): WP_Screen::is_block_editor( bool $set = null ) which sets or returns whether the block editor is loading on the current screen. So you can do that check using this code: global $current_screen; $current_screen = get_current_screen(); if ( method_exists($current_screen, ‘is_block_editor’) && $current_screen->is_block_editor() ) { // DO SOMETHING } You can also add to this … Read more