Tutorial by Examples

add_filter('comment_text','before_comment'); add_filter('comment_text','after_comment'); function before_comment($comment_text){ return 'input before comment'.$comment_text; } function after_comment($comment_text){ return $comment_text.'input after comment'; ...

add_action('wp_head','hook_javascript'); function hook_javascript() { $output="<script> alert('Page is loading...'); </script>"; echo $output; }

<?php function wpshout_register_widgets() { register_widget( 'Favorite_Song_Widget'); } add_action( 'widgets_init', 'wpshout_register_widgets' ); class Favorite_Song_Widget extends WP_Widget { function Favorite_Song_Widget() { // Instantiate the parent object parent:...