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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 |
|---|---|
| 1221 | } |
| 1222 | |
| 1223 | if ( 'all' == $args['get'] ) { |
| 1224 | $args['child_of'] = 0; |
| 1225 | $args['hide_empty'] = 0; |
| 1226 | $args['hierarchical'] = false; |
| 1227 | $args['pad_counts'] = false; |
| 1228 | } |
| 1229 | |
| 1230 | $args = apply_filters( 'get_terms_args', $args, $taxonomies ); |
| 1231 | |
| 1232 | extract($args, EXTR_SKIP); |
| 1233 | |
| 1234 | if ( $child_of ) { |
| 1235 | $hierarchy = _get_term_hierarchy($taxonomies[0]); |
| 1236 | if ( !isset($hierarchy[$child_of]) ) |
| 1237 | return $empty_array; |
| 1238 | } |
| 1239 | |