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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 |
|---|---|
| 237 | * Filters the terms query default arguments. |
| 238 | * |
| 239 | * Use {@see 'get_terms_args'} to filter the passed arguments. |
| 240 | * |
| 241 | * @since 4.4.0 |
| 242 | * |
| 243 | * @param array $defaults An array of default get_terms() arguments. |
| 244 | * @param array $taxonomies An array of taxonomies. |
| 245 | */ |
| 246 | $this->query_var_defaults = apply_filters( 'get_terms_defaults', $this->query_var_defaults, $taxonomies ); |
| 247 | |
| 248 | $query = wp_parse_args( $query, $this->query_var_defaults ); |
| 249 | |
| 250 | $query['number'] = absint( $query['number'] ); |
| 251 | $query['offset'] = absint( $query['offset'] ); |
| 252 | |
| 253 | // 'parent' overrides 'child_of'. |
| 254 | if ( 0 < intval( $query['parent'] ) ) { |
| 255 | $query['child_of'] = false; |