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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 |
|---|---|
| 2486 | * If any errors are present in $errors, this will abort the user's registration. |
| 2487 | * |
| 2488 | * @since 2.1.0 |
| 2489 | * |
| 2490 | * @param WP_Error $errors A WP_Error object containing any errors encountered |
| 2491 | * during registration. |
| 2492 | * @param string $sanitized_user_login User's username after it has been sanitized. |
| 2493 | * @param string $user_email User's email. |
| 2494 | */ |
| 2495 | $errors = apply_filters( 'registration_errors', $errors, $sanitized_user_login, $user_email ); |
| 2496 | |
| 2497 | if ( $errors->has_errors() ) { |
| 2498 | return $errors; |
| 2499 | } |
| 2500 | |
| 2501 | $user_pass = wp_generate_password( 12, false ); |
| 2502 | $user_id = wp_create_user( $sanitized_user_login, $user_pass, $user_email ); |
| 2503 | if ( ! $user_id || is_wp_error( $user_id ) ) { |
| 2504 | $errors->add( 'registerfail', sprintf( __( '<strong>ERROR</strong>: Couldn’t register you… please contact the <a href="mailto:%s">webmaster</a> !' ), get_option( 'admin_email' ) ) ); |