In spite of what the Codex says, since WP 4.5, where the addition of the post argument to the function get_the_excerpt was added, this filter takes two arguments. The second argument is the post object whose excerpt you are manipulating. So the function still works in the loop without an explicit post, we make the … Read more
add_filter() and add_action() are available before any plugin is loaded. So you can use both in the first line of your plugin or theme. For readability I recommend to group action and filter registrations at the very top of your main file: in a plugin, the file with the plugin header in a theme the … Read more
I’ve found out that you can use the tr attribute for creating entire rows: function my_attachment_fields_to_edit( $form_fields, $post ) { $form_fields[‘attachment-header’][‘tr’] = ‘ <tr> <td colspan=”2″> <h2>My title</h2> </td> </tr>’; $form_fields[‘attachment-url’] = array( ‘label’ => __( ‘URL’, ‘plugin’ ), ‘input’ => ‘text’, ‘value’ => get_post_meta( $post->ID, ‘_attachment_url’, true ) ); $form_fields[‘attachment-width’] = array( ‘label’ => … Read more
With the filter single_post_title, you can change the page/post title that is set in the <head><title>Page title</title></head>. If you want to change the title that you see in the page header. ( Which i think you want to do). Use this filter: add_filter(‘the_title’, ‘modify_all_titles’, 10, 2); function modify_all_titles($title, $id) { return ‘SOME TEXT BEFORE TITLE … Read more
Yes, you can. WP_Widget_Tag_Cloud widget uses wp_tag_cloud to generate the tag cloud. And inside that function and at the end of that function you can find this: /** * Filters the tag cloud output. * * @since 2.3.0 * * @param string $return HTML output of the tag cloud. * @param array $args An array … Read more
The remove_filter() is necessary to avoid the callback from being called recursively, which would result in a memory issue due to a never-ending function execution. And that recursion could happen because the callback is hooked to get_post_metadata which is invoked via the get_metadata() function which the callback calls. So you need to first “unhook”/unregister the … Read more
This code filters all style url’s. It returns the url if there is no reference to google fonts. It returns ‘false’ if there is a reference. What you want is to change the condition. It should only return false if there is a reference and you are on a certain page. Logically, this is equivalent … Read more
The problem is that you’re using term IDs in your URL, but that is incorrect. Use the term slug instead. For example, lets say we have a mytax term named helloworld with the term ID 1: example.com/cpt/?mytax=1 404 example.com/cpt/?mytax=helloworld a cpt archive filtered by the helloworld term
Like so: function my_validate_username( $valid, $username ) { $sanitized = sanitize_user( $username, false ); $valid = ( $sanitized == $username ); return $valid; } add_filter(‘validate_username’, ‘my_validate_username’, 10, 2);
In the TinyMCE plugin i wrote, my listbox wraps selected text in HTML, i do that like this.. onselect : function(v) { // Set focus to WordPress editor ed.focus(); // Get selected text var sel_txt = ed.selection.getContent(); // If no text selected if( ” == sel_txt ) return null; var active_style = toggle_styles[v]; if( ‘undefined’ … Read more