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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 200 | if ( empty($taxonomy) ) |
| 201 | $taxonomy = 'category'; |
| 202 | |
| 203 | if ( $taxonomy == 'category' ) |
| 204 | $name = 'post_category'; |
| 205 | else |
| 206 | $name = 'tax_input['.$taxonomy.']'; |
| 207 | |
| 208 | $class = in_array( $category->term_id, $popular_cats ) ? ' class="popular-category"' : ''; |
| 209 | $output .= "\n<li id='{$taxonomy}-{$category->term_id}'$class>" . '<label class="selectit"><input value="' . $category->term_id . '" type="checkbox" name="'.$name.'[]" id="in-'.$taxonomy.'-' . $category->term_id . '"' . checked( in_array( $category->term_id, $selected_cats ), true, false ) . disabled( empty( $args['disabled'] ), false, false ) . ' /> ' . esc_html( apply_filters('the_category', $category->name )) . '</label>'; |
| 210 | } |
| 211 | |
| 212 | function end_el(&$output, $category, $depth, $args) { |
| 213 | $output .= "</li>\n"; |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * {@internal Missing Short Description}} |
| Line | Code |
| 335 | if ( !$echo ) // hack for AJAX use |
| 336 | continue; |
| 337 | $id = "popular-$taxonomy-$term->term_id"; |
| 338 | $checked = in_array( $term->term_id, $checked_terms ) ? 'checked="checked"' : ''; |
| 339 | ?> |
| 340 | |
| 341 | <li id="<?php echo $id; ?>" class="popular-category"> |
| 342 | <label class="selectit"> |
| 343 | <input id="in-<?php echo $id; ?>" type="checkbox" <?php echo $checked; ?> value="<?php echo (int) $term->term_id; ?>" <?php echo $disabled ?>/> |
| 344 | <?php echo esc_html( apply_filters( 'the_category', $term->name ) ); ?> |
| 345 | </label> |
| 346 | </li> |
| 347 | |
| 348 | <?php |
| 349 | } |
| 350 | return $popular_ids; |
| 351 | } |
| 352 | |
| 353 | /** |
| Line | Code |
| 370 | } |
| 371 | |
| 372 | $categories = get_terms( 'link_category', array( 'orderby' => 'name', 'hide_empty' => 0 ) ); |
| 373 | |
| 374 | if ( empty( $categories ) ) |
| 375 | return; |
| 376 | |
| 377 | foreach ( $categories as $category ) { |
| 378 | $cat_id = $category->term_id; |
| 379 | $name = esc_html( apply_filters( 'the_category', $category->name ) ); |
| 380 | $checked = in_array( $cat_id, $checked_categories ) ? ' checked="checked"' : ''; |
| 381 | 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>"; |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | // Tag stuff |
| 386 | |
| 387 | // Returns a single tag row (see tag_rows below) |
| 388 | // Note: this is also used in admin-ajax.php! |