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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 2 times in this file.
| Line | Code |
|---|---|
| 339 | * @return string |
| 340 | */ |
| 341 | function get_year_link($year) { |
| 342 | global $wp_rewrite; |
| 343 | if ( !$year ) |
| 344 | $year = gmdate('Y', current_time('timestamp')); |
| 345 | $yearlink = $wp_rewrite->get_year_permastruct(); |
| 346 | if ( !empty($yearlink) ) { |
| 347 | $yearlink = str_replace('%year%', $year, $yearlink); |
| 348 | return apply_filters('year_link', home_url( user_trailingslashit($yearlink, 'year') ), $year); |
| 349 | } else { |
| 350 | return apply_filters('year_link', home_url('?m=' . $year), $year); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * Retrieve the permalink for the month archives with year. |
| 356 | * |
| 357 | * @since 1.0.0 |
| 358 | * |
| 359 | * @param bool|int $year False for current year. Integer of year. |