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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 |
|---|---|
| 156 | * |
| 157 | * Passing a non-null value will short-circuit the generation, |
| 158 | * returning that value instead. |
| 159 | * |
| 160 | * @since 5.5.0 |
| 161 | * |
| 162 | * @param int|null $max_num_pages The maximum number of pages. Default null. |
| 163 | * @param string $post_type Post type name. |
| 164 | */ |
| 165 | $max_num_pages = apply_filters( 'wp_sitemaps_posts_pre_max_num_pages', null, $post_type ); |
| 166 | |
| 167 | if ( null !== $max_num_pages ) { |
| 168 | return $max_num_pages; |
| 169 | } |
| 170 | |
| 171 | $args = $this->get_posts_query_args( $post_type ); |
| 172 | $args['fields'] = 'ids'; |
| 173 | $args['no_found_rows'] = false; |
| 174 | |