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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 |
---|---|
786 | } |
787 | /** |
788 | * Filter the HTML output of individual page number links. |
789 | * |
790 | * @since 3.6.0 |
791 | * |
792 | * @param string $link The page number HTML output. |
793 | * @param int $i Page number for paginated posts' page links. |
794 | */ |
795 | $link = apply_filters( 'wp_link_pages_link', $link, $i ); |
796 |
|
797 | // Use the custom links separator beginning with the second link. |
798 | $output .= ( 1 === $i ) ? ' ' : $r['separator']; |
799 | $output .= $link; |
800 | } |
801 | $output .= $r['after']; |
802 | } elseif ( $more ) { |
803 | $output .= $r['before']; |
804 | $prev = $page - 1; |
805 | if ( $prev ) { |
806 | $link = _wp_link_page( $prev ) . $r['link_before'] . $r['previouspagelink'] . $r['link_after'] . '</a>'; |
807 |
|
808 | /** This filter is documented in wp-includes/post-template.php */ |
809 | $output .= apply_filters( 'wp_link_pages_link', $link, $prev ); |
810 | } |
811 | $next = $page + 1; |
812 | if ( $next <= $numpages ) { |
813 | if ( $prev ) { |
814 | $output .= $r['separator']; |
815 | } |
816 | $link = _wp_link_page( $next ) . $r['link_before'] . $r['nextpagelink'] . $r['link_after'] . '</a>'; |
817 |
|
818 | /** This filter is documented in wp-includes/post-template.php */ |
819 | $output .= apply_filters( 'wp_link_pages_link', $link, $next ); |
820 | } |
821 | $output .= $r['after']; |
822 | } |
823 | } |
824 |
|
825 | /** |
826 | * Filter the HTML output of page links for paginated posts. |
827 | * |
828 | * @since 3.6.0 |