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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 |
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127 | * in an unordered list. An empty string will result in the default behavior. |
128 | * @param string $parents Optional. How to display the parents. |
129 | * @param int $post_id Optional. Post ID to retrieve categories. |
130 | * @return string |
131 | */ |
132 | function get_the_category_list( $separator = '', $parents = '', $post_id = false ) { |
133 | global $wp_rewrite; |
134 | if ( ! is_object_in_taxonomy( get_post_type( $post_id ), 'category' ) ) { |
135 | /** This filter is documented in wp-includes/category-template.php */ |
136 | return apply_filters( 'the_category', '', $separator, $parents ); |
137 | } |
138 |
|
139 | /** |
140 | * Filters the categories before building the category list. |
141 | * |
142 | * @since 4.4.0 |
143 | * |
144 | * @param WP_Term[] $categories An array of the post's categories. |
145 | * @param int|bool $post_id ID of the post we're retrieving categories for. When `false`, we assume the |
146 | * current post in the loop. |
147 | */ |
148 | $categories = apply_filters( 'the_category_list', get_the_category( $post_id ), $post_id ); |
149 |
|
150 | if ( empty( $categories ) ) { |
151 | /** This filter is documented in wp-includes/category-template.php */ |
152 | return apply_filters( 'the_category', __( 'Uncategorized' ), $separator, $parents ); |
153 | } |
154 |
|
155 | $rel = ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) ? 'rel="category tag"' : 'rel="category"'; |
156 |
|
157 | $thelist = ''; |
158 | if ( '' == $separator ) { |
159 | $thelist .= '<ul class="post-categories">'; |
160 | foreach ( $categories as $category ) { |
161 | $thelist .= "\n\t<li>"; |
Line | Code |
211 | * Filters the category or list of categories. |
212 | * |
213 | * @since 1.2.0 |
214 | * |
215 | * @param string $thelist List of categories for the current post. |
216 | * @param string $separator Separator used between the categories. |
217 | * @param string $parents How to display the category parents. Accepts 'multiple', |
218 | * 'single', or empty. |
219 | */ |
220 | return apply_filters( 'the_category', $thelist, $separator, $parents ); |
221 | } |
222 |
|
223 | /** |
224 | * Checks if the current post is within any of the given categories. |
225 | * |
226 | * The given categories are checked against the post's categories' term_ids, names and slugs. |
227 | * Categories given as integers will only be checked against the post's categories' term_ids. |
228 | * |
229 | * Prior to v2.5 of WordPress, category names were not supported. |