[Solved] Identify the error in this shortcode registration code: function my_shortcode() { return 'Welcome!'; } add_shortcode(my_shortcode, 'welcome'); | Wordpress

Wordpress - Shortcodes and Blocks

Identify the error in this shortcode registration code:

function my_shortcode() {
  return 'Welcome!';
}
add_shortcode(my_shortcode, 'welcome');

AThe function name should be a string in add_shortcode

BThe function must echo output, not return

CThe shortcode tag and callback function arguments are swapped

DShortcode functions cannot have parameters

Step-by-Step Solution

Solution:

Step 1: Check add_shortcode argument order and types
The first argument must be the shortcode tag as a string, and the second argument must be the callback function name as a string.
Step 2: Identify incorrect argument usage
The code uses add_shortcode(my_shortcode, 'welcome') where my_shortcode is not quoted, so it's treated as a constant or variable, causing an error. Also, the arguments are swapped.
Step 3: Correct usage
The correct call should be add_shortcode('welcome', 'my_shortcode'); with both arguments as strings and in correct order.
Final Answer:
The function name should be a string in add_shortcode -> Option A
Quick Check:
add_shortcode('tag', 'function') correct order and string types [OK]

Quick Trick: First argument is shortcode tag string, second is function name string [OK]

Common Mistakes:

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