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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 |
|---|---|
| 1735 | |
| 1736 | if ( intval($page) <= 1 ) |
| 1737 | return; |
| 1738 | |
| 1739 | $prevpage = intval($page) - 1; |
| 1740 | |
| 1741 | if ( empty($label) ) |
| 1742 | $label = __('« Older Comments'); |
| 1743 | |
| 1744 | return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .'</a>'; |
| 1745 | } |
| 1746 | |
| 1747 | /** |
| 1748 | * Display the previous comments page link. |
| 1749 | * |
| 1750 | * @since 2.7.0 |
| 1751 | * |
| 1752 | * @param string $label Optional. Label for comments link text. |
| 1753 | */ |