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 |
|---|---|
| 1599 | $user_email = ''; |
| 1600 | |
| 1601 | /** |
| 1602 | * Filter a user's email before the user is created or updated. |
| 1603 | * |
| 1604 | * @since 2.0.3 |
| 1605 | * |
| 1606 | * @param string $user_email The user's email. |
| 1607 | */ |
| 1608 | $user_email = apply_filters( 'pre_user_email', $user_email ); |
| 1609 | |
| 1610 | if ( !$update && ! defined( 'WP_IMPORTING' ) && email_exists($user_email) ) |
| 1611 | return new WP_Error( 'existing_user_email', __( 'Sorry, that email address is already used!' ) ); |
| 1612 | |
| 1613 | if ( empty($nickname) ) |
| 1614 | $nickname = $user_login; |
| 1615 | |
| 1616 | /** |
| 1617 | * Filter a user's nickname before the user is created or updated. |