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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 |
|---|---|
| 4760 | * |
| 4761 | * "Pages" are determined by splitting the post content based on the presence |
| 4762 | * of `<!-- nextpage -->` tags. |
| 4763 | * |
| 4764 | * @since 4.4.0 |
| 4765 | * |
| 4766 | * @param string[] $pages Array of "pages" from the post content split by `<!-- nextpage -->` tags. |
| 4767 | * @param WP_Post $post Current post object. |
| 4768 | */ |
| 4769 | $pages = apply_filters( 'content_pagination', $pages, $post ); |
| 4770 | |
| 4771 | $numpages = count( $pages ); |
| 4772 | |
| 4773 | if ( $numpages > 1 ) { |
| 4774 | if ( $page > 1 ) { |
| 4775 | $more = 1; |
| 4776 | } |
| 4777 | $multipage = 1; |
| 4778 | } else { |