WordPress template page name displayed on screen

Hi there _ Must admit I’m scratching my head!

I’ve uploaded a demo site that uses a number of template pages.
Everything works as expected, but whenever there’s a page change the top 3 lines of the php template file are briefly displayed on the screen.
I mean these lines:

/* 
Template Name: name
*/

You can see the display yourself at this URL : Demo website

If you click on any of the bottom 5 sub-items under ‘PAINTINGS’, the momentary display of the template name will appear top right of the screen

This has never happened to me before and I’ve tried everything that I can think of:

I’m not sure this fault is directly connected to php code. I think it might be more related to the WordPress framework. But I will add one php template page, just in case! (The other templates are very much the same)

/* 
Template Name: Exhibition - Pilgrims 
*/
<?php get_header(); ?>
        
        <div class="container fadeIn perimeter">
            
            <section id="WhatWaterGaveMepage">

                <div class="row">
                    <div class="col-12">              
                        <div class="divPad">
                            <?php $featured_query = new WP_Query( array(
                                'category_name' => 'pilgrims-text'
                            )); ?>

                            <?php while($featured_query->have_posts()) : $featured_query->the_post(); ?>
                                <article class="fontBrand1 fontType1 pageText">
                                    <div class="horizBuffer2"></div>
                                    <p class="left"><?php the_content(); ?></p>
                                </article>
                            <?php endwhile; ?>
                       </div><!-- /.divPad -->
                    </div>
                </div><!-- /.row -->
             
            </section><!-- /#WhatWaterGaveMepage -->

            <section class="gallery" id="mainGallery">
                <div class="container">
                    
                    <div class="row">

                        <?php
                            global $query_string;
                            query_posts( $query_string . '&posts_per_page=-1' );
                        ?>
                        
                        <?php $featured_query = new WP_Query( array(
                            'category_name' => 'pilgrims'
                        )); ?>
                        
                        <?php while($featured_query->have_posts()) : 
                            $featured_query->the_post(); ?>
                                <div class="col-md-4">
                                    <div class="divPad">
                                        <a href="<?php echo the_permalink(); ?>">
                                            <?php $post_id = get_the_ID(); ?>
                                            <?php the_post_thumbnail(); ?>
                                        </a>
                                        <br />
                                        <span class="fontBrand1 fontType1 text"><?php echo the_title(); ?></span>
                                    </div><!-- /.divPad -->
                                </div>
                                
                                
                        <?php endwhile; ?>
                        <?php wp_reset_postdata(); ?>
                   
                    </div><!-- /.row -->
                </div><!-- /.container -->
            </section><!-- /#mainGallery -->
            
            <div class="horizBuffer2"></div>
        </div><!-- /.perimeter -->
        
<?php get_footer(); ?>

If anyone can help me get rid of this ‘template name displayed’ glitch I’ll be very grateful _ Thanks

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

If your template file doesn’t have the <?php tag at the top, you should add it.

<?php
/*
Template Name: Exhibition - Pilgrims 
*/

…is how the very top of your template file should look.

Your sample should read like this.

<?php
/* 
Template Name: Exhibition - Pilgrims 
*/
get_header(); ?>
        
        <div class="container fadeIn perimeter">
... [etc]

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0