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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 |
|---|---|
| 1245 | /** |
| 1246 | * Filters the list of terms attached to the given post. |
| 1247 | * |
| 1248 | * @since 3.1.0 |
| 1249 | * |
| 1250 | * @param WP_Term[]|WP_Error $terms Array of attached terms, or WP_Error on failure. |
| 1251 | * @param int $post_id Post ID. |
| 1252 | * @param string $taxonomy Name of the taxonomy. |
| 1253 | */ |
| 1254 | $terms = apply_filters( 'get_the_terms', $terms, $post->ID, $taxonomy ); |
| 1255 | |
| 1256 | if ( empty( $terms ) ) { |
| 1257 | return false; |
| 1258 | } |
| 1259 | |
| 1260 | return $terms; |
| 1261 | } |
| 1262 | |
| 1263 | /** |