Вместо страницы отображается окно с кодом!

<textarea cols="70" rows="30" name="newcontent" id="newcontent" aria-describedby="newcontent-description"><?php
/**
 * The template for displaying all pages.
 *
 * This is the template that displays all pages by default.
 * Please note that this is the WordPress construct of pages
 * and that other 'pages' on your WordPress site will use a
 * different template.
 */
 
if(is_blog()){
    return load_template(THEME_DIR . "/template_blog.php");
}elseif(is_front_page()){
    return load_template(THEME_DIR . "/front-page.php");
}
 
$post_id = get_queried_object_id();
$layout = theme_get_inherit_option($post_id, '_layout', 'general','layout');
$content_width = ($layout === 'full')? 960: 630;
get_header(); 
echo theme_generator('introduce',$post_id);?>
<div id="page">
    <div class="inner <?php if($layout=='right'):?>right_sidebar<?php endif;?><?php if($layout=='left'):?>left_sidebar<?php endif;?>">
        <?php echo theme_generator('breadcrumbs',$post_id);?>
        <div id="main">
<?php if ( have_posts() ) while ( have_posts() ) : the_post(); ?>
            <?php get_template_part('content','page'); ?>
<?php endwhile; // end of the loop.?>
            <div class="clearboth"></div>
        </div>
        <?php if($layout != 'full') get_sidebar(); ?>
        <div class="clearboth"></div>
    </div>
</div>
<?php get_footer(); ?>