How to add a custom filter in functions.php

To be honest, I had to actually see the source code to get the correct answer for you.

The problem with this particular filter is that the $filter part is dynamic and thus you have to know what particular frequency you want to modify. There’s a numerous of options:

homepage,

blogpage,

$post_type . '_archive',

$post_type . '_single',

$c->taxonomy . '_term',

author_archive.

So once you figure out what particular filter you want to modify (I have chosen a homepage one), you put the following to your functions.php

add_filter( 'wpseo_sitemap_homepage_change_freq', 'my_custom_homepage_freq', 10, 2 );

function my_custom_homepage_freq( $default, $url ) {
    return 'hourly';
}

Changing author_archive is also easy one, as you replace the $filter part in the filter name to author_archive.

In case of $post_type . '_single' (or the other one with $post_type in name), you have to replace the $filter part with the post_type name. Eg for pages only:

add_filter( 'wpseo_sitemap_page_single_change_freq', 'my_custom_page_freq', 10, 2 );

function my_custom_page_freq( $default, $url ) {
     return 'hourly';
}

To reveal you the part of figuring out what can stand for $filter in your original question, I had to check out the ./inc/class-sitemaps.php file (can be seen here in Subversion: http://plugins.svn.wordpress.org/wordpress-seo/trunk/inc/class-sitemaps.php ) where on the line 578 is the function called filter_frequency and it constructs the filter. That function filter_frequency is being called few times from within the file and contains the $filter part as it’s first argument. Eg:

$this->filter_frequency( 'homepage', 'daily', $this->home_url )

Related Posts:

  1. Changing WooCommerce Display Price Based on User Role & Category [closed]
  2. Not able to change wp_title using add_filter
  3. How to hook a filter to catch get_post_meta when alternate a custom field output?
  4. Changing JPEG compression depending on image size
  5. Advanced Custom Fields and Yoast SEO keyword analysis [closed]
  6. Insert Custom HTML After Shortcode
  7. Is there a way to add another row to the tinyMCE kitchen sink toggle?
  8. What do add_filters() and apply_filter() do?
  9. add_filter to youtube embeds?
  10. How can I detect if a user changes their password?
  11. SSL certificate for the host could not be verified
  12. Store source permalink on XMLRPC calls
  13. What to use instead of the content_save_pre filter?
  14. How to limit the pages displayed for choosing parent page on page attribute’s menu?
  15. How can I customize the wp_list_categories
  16. Setting title using wp_title filter
  17. 4.0 remove_filter for WordPress core function not working for me
  18. How do I add a current class to the current post?
  19. How apply_filters work in WordPress?
  20. Apply a filter only once
  21. Filtering admin entries for custom post type
  22. What hook/filter can I use to add/edit/show/hide the title under (on hover) links on the table view?
  23. option_active_plugins filter not working
  24. How do we check if the user is logging in or registering?
  25. Anonymous function is executed twice in wp_head while added from the_posts filter?
  26. add_filter return value
  27. Add a header before fields added with the attachment_fields_to_edit() filter
  28. Are there Limitations on filter handles?
  29. Why my admin doesn’t work after adding rest_prepare_post filter?
  30. Buddypress: Edit activity when new blog post [closed]
  31. How do I filter title and alt attributes in the gallery shortcode?
  32. remove_action in plugin file
  33. How to apply filter at search of woocommerce products?
  34. Variables in post title
  35. Filtering post-formats from the loop using new WP-Query();
  36. How to edit dashboard search posts button texts for my CPT?
  37. How to add a filter to get_the_author_meta?
  38. When does a function assigned to the content_filtered_edit_pre filter hook fire?
  39. Capture post content before page renders
  40. Empty string supplied as input when parsing content
  41. How can I remove the kses filters when saving a specific post type ? (it breaks my JSON)
  42. Remove_action does not work
  43. page_attributes_dropdown_pages_args filter does not work
  44. What different ways can a plugin add a filter to a WordPress site?
  45. Make an array filterable per hook
  46. How to pass variables to custom filter from multiple functions
  47. WooCommerce Custom Product Validation [closed]
  48. Make WP not format code, not insert line breaks in between tags
  49. the_content filter together with require_once returns 1 instead of the content of the included file
  50. Missing Argument 2 for apply_filter
  51. How to get a single hook from wp_head()?
  52. Filter an array with a callback – for single & multidimensional arrays
  53. Detect when gutenberg editor title is available in Dom after editor load
  54. How to apply a filter to an ACF wysiwig editor field output?
  55. Are href attributes of a elements filtered on output to add the current path?
  56. Is it possible to bind a function to a filter hook via Ajax?
  57. Add a filter to an action [closed]
  58. Add Filter not working with get_posts
  59. How to Prevent WordPress to encode html in post?
  60. Why template_include filter does not work with WPML plugin?
  61. Hide Posts In Back-end/Admin Based On User’s (Pseudo) Privileges Controlled by ACF
  62. Filter Pages by Custom Field (ACF) in admin area
  63. Most performant/functional way to add actions/filters?
  64. Remove tags without a specific meta key from “choose from the most used tags”
  65. Which Filter Do I Use To Modify The Subject Of The Retrieve Password Notification Email?
  66. Register users by e-mail
  67. Making an add_filter() call from within an add_filter() call
  68. automatic title through filter
  69. Filter causing loss of _wp_attachment_metadata
  70. Finding actual functions added to hooks and filters
  71. Buddypress Filter Multiple Activities [closed]
  72. How to apply filter on get_the_post_thumbnail()
  73. How do I check if I can use the allowed_block_types filter?
  74. Setting the page title in a plugin, but not outside my plugin
  75. oembed_dataparse filter not running at all for standard YouTube embed
  76. Security question – Display a General Custom Login Error Message
  77. Action for opening attachment or manipulating all attachment links
  78. Filter wp_mail based on content type
  79. Remove the post_content search from WHERE clause (and CONCAT sql function)
  80. mu-plugins body_class filter not working
  81. How to apply a filter to everything?
  82. WP Job Manager – display search results from custom search form in taxonomy-job_listing_category page
  83. Conditionally (cpt) filter previous and next_post_link
  84. Post filter Month dropdown at front-end like wordpress backend
  85. shortcode function outputs multiple anchor tags
  86. changing size image within the content
  87. WP Dashboard -> Posts-> Filter by Category -> Form Method Change : Which Hook
  88. Show child theme for users on specific IP
  89. wp.getPosts with status = ‘trash’ using node.js
  90. Is there a way to overwrite a filter used in canonical.php?
  91. How do I remove certain HTML elements with specific classes from the feed?
  92. Adding an orderby filter, casting postmeta with multiple keys
  93. Sanitizing a custom query’s clauses
  94. How can I display wp_link_pages before a shortcode, if it is used, or display after content?
  95. confusion with add_filter
  96. post->post_content filter
  97. How to change this WP logo and posts url in block editor?
  98. Can you call a filter hook by “add_action”?
  99. Why isn’t this add_filter function working as expected?
  100. Adding filter to the Contact Form 7 response

Leave a Comment

error code: 523