filters - Read For Learn

Replace a part of url generated by get_term_link

Yes, there is a hook “term_link” which you can use for this purpose. Here you can find documentation. https://codex.wordpress.org/Plugin_API/Filter_Reference/term_link so the solution will be like this add_filter(‘term_link’, ‘term_link_filter’, 10, 3); function term_link_filter( $url, $term, $taxonomy ) { $url= str_replace(‘listing-category/’, ‘jobs/?fwp_cate=”, $url); $url= rtrim($url, “https://wordpress.stackexchange.com/”); return $url . “#results”; }

How do I filter get_the_excerpt() but keep all of its functionality intact?

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

is there a specific place where add_filter must be placed?

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

Add a header before fields added with the attachment_fields_to_edit() filter

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

How to change the blog title with add_filter? details below

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

WordPress tag cloud add more links

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

Explanation for remove_filter used in the below code [closed]

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

How to remove google font in WordPress for only single page?

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

Filter custom post types in archive

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

add_filter return value

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);

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