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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 |
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558 | * @param array $result { |
559 | * The array of user name, email and the error messages. |
560 | * |
561 | * @type string $user_name Sanitized and unique username. |
562 | * @type string $orig_username Original username. |
563 | * @type string $user_email User email address. |
564 | * @type WP_Error $errors WP_Error object containing any errors found. |
565 | * } |
566 | */ |
567 | return apply_filters( 'wpmu_validate_user_signup', $result ); |
568 | } |
569 |
|
570 | /** |
571 | * Processes new site registrations. |
572 | * |
573 | * Checks the data provided by the user during blog signup. Verifies |
574 | * the validity and uniqueness of blog paths and domains. |
575 | * |
576 | * This function prevents the current user from registering a new site |