将简码添加到 WP (functions.php)

Question

WordPress and PHP newbie here.

I just want to add the most basic shortcode directly into functions.php for learning purposes. My shortcode does not work, basically, nothing happens. If I am able to run this simple code, then I will try more complex shortcodes.

function hello_world() {
  return 'Hello World!';
}

add_shortcode('helloworld', 'hello_world');

In a page, I add [helloworld] using the Gutenberg shortcode block. I cannot see any errors on the page or console. Am I missing something fundamental to add shortcodes?

Answer 1

try the following:

function hello_world() {
  return '<h1>Hello World!</h1>';
}

function register_shortcodes(){
   add_shortcode('helloworld', 'hello_world');
}

add_action( 'init', 'register_shortcodes');

In order to execute our register_shortcodes() function, you will tie it to WordPress' initialization action.

Then try your shortcode with [helloworld]

Please let me know if it works