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wp_authenticate_spam_check( WP_User|WP_Error|null $user )

For Multisite blogs, check if the authenticated user has been marked as a spammer, or if the user’s primary blog has been marked as spam.

Parameters

$user: (WP_User|WP_Error|null) (Required) WP_User or WP_Error object from a previous callback. Default null.

Return

(WP_User|WP_Error) WP_User on success, WP_Error if the user is considered a spammer.

Source

File: wp-includes/user.php

function wp_authenticate_spam_check( $user ) {
	if ( $user instanceof WP_User && is_multisite() ) {
		/**
		 * Filters whether the user has been marked as a spammer.
		 *
		 * @since 3.7.0
		 *
		 * @param bool    $spammed Whether the user is considered a spammer.
		 * @param WP_User $user    User to check against.
		 */
		$spammed = apply_filters( 'check_is_user_spammed', is_user_spammy( $user ), $user );

		if ( $spammed ) {
			return new WP_Error( 'spammer_account', __( '<strong>Error</strong>: Your account has been marked as a spammer.' ) );
		}
	}
	return $user;
}

Uses

Uses	Description
wp-includes/l10n.php: __()	Retrieve the translation of $text.
wp-includes/load.php: is_multisite()	If Multisite is enabled.
wp-includes/plugin.php: apply_filters()	Calls the callback functions that have been added to a filter hook.
wp-includes/user.php: check_is_user_spammed	Filters whether the user has been marked as a spammer.
wp-includes/ms-functions.php: is_user_spammy()	Check to see whether a user is marked as a spammer, based on user login.
wp-includes/class-wp-error.php: WP_Error::__construct()	Initialize the error.

Changelog

Version	Description
3.7.0	Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_authenticate_spam_check