list of some daily uses WordPress hooks with example

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Δημοσιευμένα 2024-03-04 18:49:04

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wp_head Action Hook:
- Description: Used to inject code into the <head> section of the HTML document.
- Example:
  
  function custom_code_in_head() { echo '<meta name="description" content="Custom description">'; } add_action('wp_head', 'custom_code_in_head');
wp_footer Action Hook:
- Description: Allows insertion of code just before the closing </body> tag.
- Example:
  
  function custom_code_in_footer()
  
  { echo '<script>alert("Hello, World!");</script>'; }
  
  add_action('wp_footer', 'custom_code_in_footer');
init Action Hook:
- Description: Used for initializing code or actions.
- Example:
  
  function custom_init_function() { // Your initialization code here } add_action('init', 'custom_init_function');

2. Filter Hooks:

the_content Filter Hook:

- Description: Allows modification of the content before it is displayed.
- Example:
  
  function custom_content_filter($content) { return $content . '<p>Custom content added.</p>'; }
  
  add_filter('the_content', 'custom_content_filter');
the_title Filter Hook:
- Description: Used to modify the post/page title before it is displayed.
- Example:
  
  function custom_title_filter($title)
  
  { return 'Custom Prefix: ' . $title; }
  
  add_filter('the_title', 'custom_title_filter');
excerpt_length Filter Hook:
- Description: Adjusts the length of the excerpt.
- Example:
  
  function custom_excerpt_length($length)
  
  { return 20; // Set the desired length }
  
  add_filter('excerpt_length', 'custom_excerpt_length');

admin_menu Action Hook:

Description: Used to add menu items to the WordPress admin menu.
Example:
function add_custom_menu()

{ add_menu_page('Custom Page', 'Custom Menu', 'manage_options', 'custom-page', 'custom_page_callback'); }

add_action('admin_menu', 'add_custom_menu'); function custom_page_callback() { // Content for the custom admin page }
widgets_init Action Hook:
- Description: Enables the registration of custom widgets.
- Example:
  
  function register_custom_widget() { register_widget('Custom_Widget_Class'); }
  
  add_action('widgets_init', 'register_custom_widget'); class Custom_Widget_Class extends WP_Widget
  
  { // Custom widget implementation }
the_excerpt Filter Hook:
- Description: Modifies the excerpt content before it is displayed.
- Example:
  
  function custom_excerpt_filter($excerpt)
  
  {
  
  return $excerpt . ' <a href="' . get_permalink() . '">Read more</a>';
  
  }
  
  add_filter('the_excerpt', 'custom_excerpt_filter');
login_headerurl Filter Hook:
- Description: Modifies the login page header URL.
- Example:
- function custom_login_url() {
  return home_url('/');
  }
  add_filter('login_headerurl', 'custom_login_url');
wp_nav_menu_items Filter Hook:
- Description: Adds custom items to the navigation menu.
- Example:
- function add_custom_menu_item($items, $args) {
  if ($args->theme_location == 'primary') {
  $items .= '<li><a href="#">Custom Link</a></li>';
  }
  return $items;
  }
  add_filter('wp_nav_menu_items', 'add_custom_menu_item', 10, 2);
- save_post Action Hook:
  - Description: Triggered after a post or page is saved in the database.
  - Example:
  - function custom_save_post_callback($post_id, $post, $update) {
    // Custom logic to be executed after post/page is saved
    }
    add_action('save_post', 'custom_save_post_callback', 10, 3);
  wp_enqueue_scripts Action Hook:
  - Description: Used to enqueue scripts and styles on the front end.
  - Example:
  - function enqueue_custom_scripts() {
    wp_enqueue_script('custom-script', get_template_directory_uri() . '/js/custom-script.js', array('jquery'), '1.0', true);
    }
    add_action('wp_enqueue_scripts', 'enqueue_custom_scripts');
  - the_title Filter Hook:
    
    Description: Modifies the post or page title before it is displayed.
    
    Example:
    
    function custom_title_filter($title) {
    return 'Custom Prefix: ' . $title;
    }
    add_filter('the_title', 'custom_title_filter');
  excerpt_length Filter Hook:
  - Description: Modifies the number of words in the excerpt.
  - Example:
  - function custom_excerpt_length($length)
  - { return 20; // Set the custom excerpt length }
  - add_filter('excerpt_length', 'custom_excerpt_length');
  body_class Filter Hook:
  - Description: Adds custom classes to the body element.
  - Example:function add_custom_body_class($classes) {
    $classes[] = 'custom-class';
    return $classes;
    }
    add_filter('body_class', 'add_custom_body_class');

daily_uses_WordPress_hooks_with_example

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