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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 |
|---|---|
| 3865 | |
| 3866 | /** |
| 3867 | * Filters the number of found posts for the query. |
| 3868 | * |
| 3869 | * @since 2.1.0 |
| 3870 | * |
| 3871 | * @param int $found_posts The number of posts found. |
| 3872 | * @param WP_Query &$this The WP_Query instance (passed by reference). |
| 3873 | */ |
| 3874 | $this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) ); |
| 3875 | |
| 3876 | if ( ! empty( $limits ) ) |
| 3877 | $this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] ); |
| 3878 | } |
| 3879 | |
| 3880 | /** |
| 3881 | * Set up the next post and iterate current post index. |
| 3882 | * |
| 3883 | * @since 1.5.0 |