create theme in wordpress code example

Example 1: wordpress theme development

You can use this as start theme or as boilerplate for theme
this has all the start up files 

https://github.com/d4rkvent/understrap

Example 2: wordpress custom theme

//créer wp-content/themes/myThemeName/style.css
/*
Theme Name: Capitaine
Theme URI: https://capitainewp.io
Author: Maxime BERNARD-JACQUET
Author URI: https://dysign.fr
Description: Mon premier thème !
Requires at least: WordPress 5.0
Version: 1.0
*/

//créer wp-content/themes/myThemeName/index.php
<?php
	$echo = "content"
?>
<!DOCTYPE html>
<html>
<head></head>
<body>
	<h1>Coucou ! <?php echo$echo ?></h1>
</body>
</html>


//That's all, go to theme in /wp-admin web interface, 
//and select "Capitaine" theme in 'Appearence' dashboard menu to activate your brand new wordpress theme

Example 3: wordpress theme devalopement

<?php
 
get_header();
 
if ( have_posts() ) :
	while ( have_posts() ) : the_post(); ?>
 
        <article class="post">
            <h2><a href="<?php the_permalink() ?>"><?php the_title() ?></a></h2>
			<?php the_content() ?>
        </article>
	
	<?php endwhile;
 
else :
	echo '<p>There are no posts!</p>';
 
endif;
 
get_footer();
 
?>