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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 |
|---|---|
| 1061 | if ( ! $post = get_post( $post ) ) |
| 1062 | return false; |
| 1063 | |
| 1064 | $terms = get_object_term_cache( $post->ID, $taxonomy ); |
| 1065 | if ( false === $terms ) { |
| 1066 | $terms = wp_get_object_terms( $post->ID, $taxonomy ); |
| 1067 | wp_cache_add($post->ID, $terms, $taxonomy . '_relationships'); |
| 1068 | } |
| 1069 | |
| 1070 | $terms = apply_filters( 'get_the_terms', $terms, $post->ID, $taxonomy ); |
| 1071 | |
| 1072 | if ( empty( $terms ) ) |
| 1073 | return false; |
| 1074 | |
| 1075 | return $terms; |
| 1076 | } |
| 1077 | |
| 1078 | /** |
| 1079 | * Retrieve a post's terms as a list with specified format. |