wp_link_category_checklist() – Outputs a link category checklist element.

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Description

Outputs a link category checklist element.

Usage

wp_link_category_checklist( $link_id );

Parameters

$link_id
( int ) optional – Optional. The link ID. Default 0.

Returns

void

Source

File name: wordpress/wp-admin/includes/template.php
Lines:

1 to 36 of 36
function wp_link_category_checklist( $link_id = 0 ) {
  $default = 1;

  $checked_categories = array();

  if ( $link_id ) {
    $checked_categories = wp_get_link_cats( $link_id );
    // No selected categories, strange.
    if ( ! count( $checked_categories ) ) {
      $checked_categories[] = $default;
    }
  } else {
    $checked_categories[] = $default;
  }

  $categories = get_terms(
    array(
      'taxonomy'   => 'link_category',
      'orderby'    => 'name',
      'hide_empty' => 0,
    )
  );

  if ( empty( $categories ) ) {
    return;
  }

  foreach ( $categories as $category ) {
    $cat_id = $category->term_id;

    
/** This filter is documented in wp-includes/category-template.php */
    $name    = esc_html( apply_filters( 'the_category', $category->name, '', '' ) );
    $checked = in_array( $cat_id, $checked_categories, true ) ? ' checked="checked"' : '';
    echo '<li id="link-category-', $cat_id, '"><label for="in-link-category-', $cat_id, '" class="selectit"><input value="', $cat_id, '" type="checkbox" name="link_category[]" id="in-link-category-', $cat_id, '"', $checked, '/> ', $name, '</label></li>';
  }
}
 

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