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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 |
|---|---|
| 1398 | $inlink = str_replace( '%title', $title, $link ); |
| 1399 | $inlink = str_replace( '%date', $date, $inlink ); |
| 1400 | $inlink = $string . $inlink . '</a>'; |
| 1401 | |
| 1402 | $output = str_replace( '%link', $inlink, $format ); |
| 1403 | } |
| 1404 | |
| 1405 | $adjacent = $previous ? 'previous' : 'next'; |
| 1406 | |
| 1407 | echo apply_filters( "{$adjacent}_post_link", $output, $format, $link, $post ); |
| 1408 | } |
| 1409 | |
| 1410 | /** |
| 1411 | * Retrieve links for page numbers. |
| 1412 | * |
| 1413 | * @since 1.5.0 |
| 1414 | * |
| 1415 | * @param int $pagenum Optional. Page ID. |
| 1416 | * @param bool $escape Optional. Whether to escape the URL for display, with esc_url(). Defaults to true. |