Why doesn't CKeditor display pasted HTML?

Question

PHP

When filling in a field in SKeditor, they are saved in the html markup. After fetching and pasting the same data from the database into the teaxarea CKeditor is not displayed. How can this be resolved?

CKEDITOR.replace( 'editor',
                  {
                   on:{
                         instanceReady: function (evt) {
                        CKEDITOR.instances.my_editor.insertHtml('<?php echo $data;?>');
                        evt.editor.document.getBody().setStyles({color: 'black', 'font-size': '18px'});
                     }
              } });