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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 |
|---|---|
| 1859 | |
| 1860 | if ( intval($page) <= 1 ) |
| 1861 | return; |
| 1862 | |
| 1863 | $prevpage = intval($page) - 1; |
| 1864 | |
| 1865 | if ( empty($label) ) |
| 1866 | $label = __('« Older Comments'); |
| 1867 | |
| 1868 | 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>'; |
| 1869 | } |
| 1870 | |
| 1871 | /** |
| 1872 | * Display the previous comments page link. |
| 1873 | * |
| 1874 | * @since 2.7.0 |
| 1875 | * |
| 1876 | * @param string $label Optional. Label for comments link text. |
| 1877 | */ |