WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 1404 | |
| 1405 | /** |
| 1406 | * Filters whether the given username exists or not. |
| 1407 | * |
| 1408 | * @since 4.9.0 |
| 1409 | * |
| 1410 | * @param int|false $user_id The user's ID on success, and false on failure. |
| 1411 | * @param string $username Username to check. |
| 1412 | */ |
| 1413 | return apply_filters( 'username_exists', $user_id, $username ); |
| 1414 | } |
| 1415 | |
| 1416 | /** |
| 1417 | * Determines whether the given email exists. |
| 1418 | * |
| 1419 | * For more information on this and similar theme functions, check out |
| 1420 | * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ |
| 1421 | * Conditional Tags} article in the Theme Developer Handbook. |
| 1422 | * |