404.php

<?php
/**
 * The template for displaying 404 pages (Not Found).
 */

if ( !defined('ABSPATH') ){ //Redirect (for logging) if accessed directly
	header('Location: http://' . $_SERVER['HTTP_HOST'] . substr($_SERVER['PHP_SELF'], 0, strpos($_SERVER['PHP_SELF'], "wp-content/")) . '?ndaat=' . basename($_SERVER['PHP_SELF']));
	http_response_code(403);
	die();
}

do_action('nebula_preheaders');
nebula()->increment_visitor_data('page_not_found');
get_header(); ?>

<section id="bigheadingcon">
	<div class="custom-color-overlay"></div>

	<?php if ( get_theme_mod('menu_position', 'over') === 'over' ): ?>
		<?php get_template_part('inc/navigation'); ?>
	<?php endif; ?>

	<?php if ( get_theme_mod('title_location', 'hero') === 'hero' ): ?>
		<div class="container title-desc-con">
			<div class="row">
				<div class="col">
					<h1 class="page-title">Not Found</h1>
					<p class="page-meta">The page you requested could not be found.</p>
				</div><!--/cols-->
			</div><!--/row-->
		</div><!--/container-->

		<div id="breadcrumb-section" class="full inner dark">
			<div class="container">
				<div class="row">
					<div class="col">
						<?php nebula()->breadcrumbs(); ?>
					</div><!--/col-->
				</div><!--/row-->
			</div><!--/container-->
		</div><!--/breadcrumb-section-->
	<?php endif; ?>
</section>

<?php get_template_part('inc/nebula_drawer'); ?>

<div id="content-section">
	<div class="container">
		<?php if ( get_theme_mod('title_location') === 'content' ): ?>
			<div id="breadcrumb-section" class="row">
				<div class="col">
					<?php nebula()->breadcrumbs(); ?>
				</div><!--/col-->
			</div><!--/row-->
		<?php endif; ?>
		<div class="row">
			<div class="col-md" role="main">
				<article id="post-0" class="post error404 not-found">
					<?php if ( get_theme_mod('title_location') === 'content' ): ?>
						<h1 class="page-title">Not Found</h1>
						<p>The page you requested could not be found.</p>
					<?php endif; ?>

					<?php echo nebula()->search_form(); ?>

					<?php if ( !empty($error_query) && $error_query->have_posts() ): //$error_query is defined in libs/Functions.php ?>
						<div id="error-page-suggestions">
							<h2>Suggestions</h2>
							<?php while ( $error_query->have_posts() ): ?>
								<?php $error_query->the_post(); ?>

								<h3 class="suggestion-title entry-title">
									<?php if ( strpos(get_permalink(), $slug_keywords) ): ?>
										<i class="fa fa-fw fa-star" title="Exact match"></i>
									<?php endif; ?>

									<a class="internal-suggestion" href="<?php echo get_permalink(); ?>"><?php the_title(); ?></a>
								</h3>
						    <?php endwhile; ?>
							<p><a href="<?php echo home_url('/'); ?>?s=<?php echo str_replace('-', '+', $slug_keywords); ?>">View all results &raquo;</a></p>
						</div>
					<?php endif; ?>
					<?php wp_reset_query(); ?>
				</article>
			</div><!--/col-->

			<?php get_sidebar(); ?>
		</div><!--/row-->
	</div><!--/container-->
</div>

<script>
	var jsReferrer = ( document.referrer.length )? document.referrer : '(No JS Referrer)';
	var phpReferrer = '<?php echo ( isset($_SERVER['HTTP_REFERER']) )? $_SERVER['HTTP_REFERER'] : '(No PHP Referrer)'; ?>';
	ga('send', 'event', '404 Not Found', 'JS Referrer: ' + jsReferrer, 'PHP Referrer: ' + phpReferrer, {'nonInteraction': true});
</script>

<?php get_footer(); ?>