Whenever you find a piece of code without clear installation instructions it is probably a plugin. The example you gave is a good one, because that is the most common case: add_action(‘template_redirect’, ‘remove_404_redirect’, 1); function remove_404_redirect() { // do something } To use such a snippet, put it into a plugin: Create a new file, … Read more
WordPress will automatically insert <p> and </p> tags which separate content breaks within a post or page. If, for some reason, you want or need to remove these, you can use either of the following code snippets. To completely disable the wpautop filter, you can use: remove_filter(‘the_content’, ‘wpautop’); If you still want this to function … Read more
try the register_post_type supports parameter: ‘supports’ => array( ‘thumbnail’ )
While I strongly advise against this, and it will not speed things up, your usage is incorrect. WordPress already caches these things in the object cache/memory so it doesn’t have to fetch it multiple times in the same request, you don’t need to store the result and reuse, WP does that already out of the … Read more
Here’s the process to change the labels (I changed posts to “contacts” in my example) function change_post_menu_label() { global $menu; global $submenu; $menu[5][0] = ‘Contacts’; $submenu[‘edit.php’][5][0] = ‘Contacts’; $submenu[‘edit.php’][10][0] = ‘Add Contacts’; $submenu[‘edit.php’][15][0] = ‘Status’; // Change name for categories $submenu[‘edit.php’][16][0] = ‘Labels’; // Change name for tags echo ”; } function change_post_object_label() { global … Read more
If you look at the source code of get_the_archive_title(), you will see that there is a filter supplied, called get_the_archive_title, through which you can filter the output from the function. You can use the following to change the output on a category page add_filter( ‘get_the_archive_title’, function ( $title ) { if( is_category() ) { $title … Read more
The way to do this is to use the ‘admin_enqueue_scripts’ hook to en-queue the files you need. This hook will get passed a $hook_suffix that relates to the current page that is loaded: function my_admin_enqueue($hook_suffix) { if($hook_suffix == ‘appearance_page_theme-options’) { wp_enqueue_script(‘my-theme-settings’, get_template_directory_uri() . ‘/js/theme-settings.js’, array(‘jquery’)); wp_enqueue_style(‘my-theme-settings’, get_template_directory_uri() . ‘/styles/theme-settings.css’); ?> <script type=”text/javascript”> //<![CDATA[ var template_directory … Read more
As of WordPress 4.5 you can use: get_post_type_archive_link( ‘post’ ); This handles the logic of getting the correct URL regardless of whether posts show up on the homepage or in a specified page.
get_template_directory_uri() will always return the URI of the current parent theme. To get the child theme URI instead, you need to use get_stylesheet_directory_uri(). You can find these in the documentation, along with a list of other useful functions for getting various theme directory locations. If you prefer to use a constant, then TEMPLATEPATH is akin … Read more
Coming in late to this party, but here’s the “WordPress” way: use plugin_dir_path( __FILE__ ), e.g.: <?php include( plugin_dir_path( __FILE__ ) . ‘ipn/paypal-ipn.php’); ?> Note that the function does return the trailing slash for the filepath.