creating wordpress shortcode code example

Example 1: wordpress shortcode

// function that runs when shortcode is called
function wpb_demo_shortcode() { 
 
// Things that you want to do. 
$message = 'Hello world!'; 
 
// Output needs to be return
return $message;
} 
// register shortcode
add_shortcode('greeting', 'wpb_demo_shortcode');

Example 2: how to create shortcode

<?php
function abc()
{}
////create shortcode////
add_shortcode('page_name','abc');
?>