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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 |
|---|---|
| 3037 | |
| 3038 | /** |
| 3039 | * Filters the number of found posts for the query. |
| 3040 | * |
| 3041 | * @since 2.1.0 |
| 3042 | * |
| 3043 | * @param int $found_posts The number of posts found. |
| 3044 | * @param WP_Query $this The WP_Query instance (passed by reference). |
| 3045 | */ |
| 3046 | $this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) ); |
| 3047 | |
| 3048 | if ( ! empty( $limits ) ) |
| 3049 | $this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] ); |
| 3050 | } |
| 3051 | |
| 3052 | /** |
| 3053 | * Set up the next post and iterate current post index. |
| 3054 | * |
| 3055 | * @since 1.5.0 |