Create Shortcode in WordPress

Create shortcode that can be used in posts or pages like this:

[newshortcode]

Add to functions.php

<?php 
function newshortcode_shortcode() { 
	if(is_admin()) return;
	$post_title = get_the_title();
	ob_start();
	?>
	<?php echo $post_title; ?>
	<div>Some text</div>
	<?php
	$output = ob_get_contents();
	ob_end_clean();
	return $output;
} 
add_shortcode('newshortcode', 'newshortcode_shortcode');
?>