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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 |
|---|---|
| 1275 | |
| 1276 | /** |
| 1277 | * Filter the terms query arguments. |
| 1278 | * |
| 1279 | * @since 3.1.0 |
| 1280 | * |
| 1281 | * @param array $args An array of get_terms() arguments. |
| 1282 | * @param array $taxonomies An array of taxonomies. |
| 1283 | */ |
| 1284 | $args = apply_filters( 'get_terms_args', $args, $taxonomies ); |
| 1285 | |
| 1286 | // Avoid the query if the queried parent/child_of term has no descendants. |
| 1287 | $child_of = $args['child_of']; |
| 1288 | $parent = $args['parent']; |
| 1289 | |
| 1290 | if ( $child_of ) { |
| 1291 | $_parent = $child_of; |
| 1292 | } elseif ( $parent ) { |
| 1293 | $_parent = $parent; |