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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 |
|---|---|
| 1309 | * Display the weekday on which the post was written. |
| 1310 | * |
| 1311 | * @since 0.71 |
| 1312 | * @uses $wp_locale |
| 1313 | * @uses $post |
| 1314 | */ |
| 1315 | function the_weekday() { |
| 1316 | global $wp_locale, $post; |
| 1317 | $the_weekday = $wp_locale->get_weekday(mysql2date('w', $post->post_date)); |
| 1318 | $the_weekday = apply_filters('the_weekday', $the_weekday); |
| 1319 | echo $the_weekday; |
| 1320 | } |
| 1321 | |
| 1322 | /** |
| 1323 | * Display the weekday on which the post was written. |
| 1324 | * |
| 1325 | * Will only output the weekday if the current post's weekday is different from |
| 1326 | * the previous one output. |
| 1327 | * |