【WP】プラグインなしでクラシックエディターを使用する方法【コピペでOK】

add_filter( 'use_block_editor_for_post', function( $use_block_editor) {
        $use_block_editor = false;
}, 10, 2 );

add_filter( 'use_block_editor_for_post', function( $use_block_editor, $post ) {
     if ( $post->post_type  === 'hoge') {
         $use_block_editor = false;
     }
     return $use_block_editor;
}, 10, 2 );