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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 |
|---|---|
| 1082 | $id = (int) $post->ID; |
| 1083 | } |
| 1084 | |
| 1085 | $terms = get_object_term_cache( $id, $taxonomy ); |
| 1086 | if ( false === $terms ) { |
| 1087 | $terms = wp_get_object_terms( $id, $taxonomy ); |
| 1088 | wp_cache_add($id, $terms, $taxonomy . '_relationships'); |
| 1089 | } |
| 1090 | |
| 1091 | $terms = apply_filters( 'get_the_terms', $terms, $id, $taxonomy ); |
| 1092 | |
| 1093 | if ( empty( $terms ) ) |
| 1094 | return false; |
| 1095 | |
| 1096 | return $terms; |
| 1097 | } |
| 1098 | |
| 1099 | /** |
| 1100 | * Retrieve a post's terms as a list with specified format. |