Using WordPress ‘day_link’ PHP filter

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The day_link WordPress PHP filter allows you to modify the permalink for the day archive.

Usage

add_filter('day_link', 'your_custom_function', 10, 4);

function your_custom_function($daylink, $year, $month, $day) {
    // your custom code here
    return $daylink;
}

Parameters

  • $daylink (string) – Permalink for the day archive.
  • $year (int) – Year for the archive.
  • $month (int) – Month for the archive.
  • $day (int) – The day for the archive.

More information

See WordPress Developer Resources: day_link

Examples

This example adds a custom prefix daily/ to the day archive permalinks.

add_filter('day_link', 'add_custom_prefix_to_day_link', 10, 4);

function add_custom_prefix_to_day_link($daylink, $year, $month, $day) {
    $daylink = str_replace(get_site_url(), get_site_url() . '/daily', $daylink);
    return $daylink;
}

This example changes the date format in the day archive permalinks to YYYY/MM/DD.

add_filter('day_link', 'change_date_format_in_day_link', 10, 4);

function change_date_format_in_day_link($daylink, $year, $month, $day) {
    $daylink = get_site_url() . '/' . $year . '/' . $month . '/' . $day;
    return $daylink;
}

This example removes the year from the day archive permalinks.

add_filter('day_link', 'remove_year_from_day_link', 10, 4);

function remove_year_from_day_link($daylink, $year, $month, $day) {
    $daylink = get_site_url() . '/' . $month . '/' . $day;
    return $daylink;
}

This example changes the day archive permalink structure to a custom string format archives/YYYY/MM/DD.

add_filter('day_link', 'change_day_link_structure', 10, 4);

function change_day_link_structure($daylink, $year, $month, $day) {
    $daylink = get_site_url() . '/archives/' . $year . '/' . $month . '/' . $day;
    return $daylink;
}

This example adds a custom query parameter source=archive to the day archive permalinks.

add_filter('day_link', 'add_custom_query_parameter_to_day_link', 10, 4);

function add_custom_query_parameter_to_day_link($daylink, $year, $month, $day) {
    $daylink = add_query_arg('source', 'archive', $daylink);
    return $daylink;
}