Actions

add_action( ‘save_post’, ‘save_post_example’ ); add_action( ‘admin_notices’, ‘admin_notices_example’ ); function save_post_example( $post_id ) { // change to any custom post type if( get_post_type( $post_id ) != ‘post’ ) { return; } if ( ! has_post_thumbnail( $post_id ) ) { // set a transient to show the users an admin message set_transient( ‘has_post_thumbnail’, ‘no’ ); // unhook […]

add_action( ‘pre_get_posts’, ‘pre_get_posts_example’ ); function pre_get_posts_example( $query ) {       if ( ! is_admin() && $query->is_main_query() ) {               if ( $query->is_search ) {             $query->set( ‘post_type’, array( ‘post’, ‘movie’ ) );         }       } }  

<?php   add_action( ‘template_redirect’, ‘template_redirect_example’ ); function template_redirect_example() {       if ( is_search() ) {               global $wp_query;                   if ( 1 == $wp_query->post_count && 1 == $wp_query->max_num_pages ) {             wp_redirect( get_permalink( $wp_query->posts[‘0’]->ID ) );             exit;         }               }       }   // Example Source: http://www.elegantthemes.com/blog/tips-tricks/eight-useful-code-snippets-for-wordpress

add_action( ‘admin_enqueue_scripts’, ‘admin_enqueue_scripts_example’ ); function admin_enqueue_scripts_example( $hook ) {       if( ‘edit.php’ != $hook ) {         return;     }           wp_enqueue_script( ‘my_custom_script’, plugin_dir_url( __FILE__ ) . ‘myscript.js’ ); }