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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.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 780 | } |
| 781 | /** |
| 782 | * Filter the HTML output of individual page number links. |
| 783 | * |
| 784 | * @since 3.6.0 |
| 785 | * |
| 786 | * @param string $link The page number HTML output. |
| 787 | * @param int $i Page number for paginated posts' page links. |
| 788 | */ |
| 789 | $link = apply_filters( 'wp_link_pages_link', $link, $i ); |
| 790 | $output .= $r['separator'] . $link; |
| 791 | } |
| 792 | $output .= $r['after']; |
| 793 | } elseif ( $more ) { |
| 794 | $output .= $r['before']; |
| 795 | $prev = $page - 1; |
| 796 | if ( $prev ) { |
| 797 | $link = _wp_link_page( $prev ) . $r['link_before'] . $r['previouspagelink'] . $r['link_after'] . '</a>'; |
| 798 | |
| 799 | /** This filter is documented in wp-includes/post-template.php */ |
| 800 | $link = apply_filters( 'wp_link_pages_link', $link, $prev ); |
| 801 | $output .= $r['separator'] . $link; |
| 802 | } |
| 803 | $next = $page + 1; |
| 804 | if ( $next <= $numpages ) { |
| 805 | $link = _wp_link_page( $next ) . $r['link_before'] . $r['nextpagelink'] . $r['link_after'] . '</a>'; |
| 806 | |
| 807 | /** This filter is documented in wp-includes/post-template.php */ |
| 808 | $link = apply_filters( 'wp_link_pages_link', $link, $next ); |
| 809 | $output .= $r['separator'] . $link; |
| 810 | } |
| 811 | $output .= $r['after']; |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | /** |
| 816 | * Filter the HTML output of page links for paginated posts. |
| 817 | * |