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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 |
|---|---|
| 3217 | |
| 3218 | /** |
| 3219 | * Filters the number of found posts for the query. |
| 3220 | * |
| 3221 | * @since 2.1.0 |
| 3222 | * |
| 3223 | * @param int $found_posts The number of posts found. |
| 3224 | * @param WP_Query $this The WP_Query instance (passed by reference). |
| 3225 | */ |
| 3226 | $this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) ); |
| 3227 | |
| 3228 | if ( ! empty( $limits ) ) { |
| 3229 | $this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] ); |
| 3230 | } |
| 3231 | } |
| 3232 | |
| 3233 | /** |
| 3234 | * Set up the next post and iterate current post index. |
| 3235 | * |