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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.
| Line | Code |
|---|---|
| 1209 | /** |
| 1210 | * Filters the list of terms attached to the given post. |
| 1211 | * |
| 1212 | * @since 3.1.0 |
| 1213 | * |
| 1214 | * @param array|WP_Error $terms List of attached terms, or WP_Error on failure. |
| 1215 | * @param int $post_id Post ID. |
| 1216 | * @param string $taxonomy Name of the taxonomy. |
| 1217 | */ |
| 1218 | $terms = apply_filters( 'get_the_terms', $terms, $post->ID, $taxonomy ); |
| 1219 | |
| 1220 | if ( empty( $terms ) ) |
| 1221 | return false; |
| 1222 | |
| 1223 | return $terms; |
| 1224 | } |
| 1225 | |
| 1226 | /** |
| 1227 | * Retrieve a post's terms as a list with specified format. |