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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 |
|---|---|
| 3591 | |
| 3592 | /** |
| 3593 | * Filters the number of found posts for the query. |
| 3594 | * |
| 3595 | * @since 2.1.0 |
| 3596 | * |
| 3597 | * @param int $found_posts The number of posts found. |
| 3598 | * @param WP_Query $query The WP_Query instance (passed by reference). |
| 3599 | */ |
| 3600 | $this->found_posts = (int) apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) ); |
| 3601 | |
| 3602 | if ( ! empty( $limits ) ) { |
| 3603 | $this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] ); |
| 3604 | } |
| 3605 | } |
| 3606 | |
| 3607 | /** |
| 3608 | * Sets up the next post and iterate current post index. |
| 3609 | * |