[Solved] Identify the error in this plugin code that tries to add a footer message:function add_footer_message() { echo 'Thank you for visiting!'; } add_filter('wp_footer', 'add_footer_message'); | Wordpress

Wordpress - Plugins and Extensibility

Identify the error in this plugin code that tries to add a footer message:

function add_footer_message() {
  echo 'Thank you for visiting!';
}
add_filter('wp_footer', 'add_footer_message');

AMissing semicolon after echo statement

BUsing add_filter instead of add_action for outputting content

CFunction name should be prefixed with 'wp_'

DThe hook name 'wp_footer' does not exist

Step-by-Step Solution

Solution:

Step 1: Understand hook types
add_filter is for modifying data, add_action is for outputting content like footer messages.
Step 2: Check code syntax and hook name
Echo statement has semicolon; 'wp_footer' is a valid action hook; function name prefix is optional.
Final Answer:
Using add_filter instead of add_action for outputting content -> Option B
Quick Check:
Use add_action to output HTML [OK]

Quick Trick: Use add_action to print content, add_filter to change data [OK]

Common Mistakes:

MISTAKES

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