WP_REST_Users_Controller::create_item( WP_REST_Request $request ): WP_REST_Response|WP_Error

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public function create_item( $request ) {	if ( ! empty( $request['id'] ) ) {	return new WP_Error(	'rest_user_exists',	__( 'Cannot create existing user.' ),	array( 'status' => 400 )	);	}	$schema = $this->get_item_schema();	if ( ! empty( $request['roles'] ) && ! empty( $schema['properties']['roles'] ) ) {	$check_permission = $this->check_role_update( $request['id'], $request['roles'] );	if ( is_wp_error( $check_permission ) ) {	return $check_permission;	}	}	$user = $this->prepare_item_for_database( $request );	if ( is_multisite() ) {	$ret = wpmu_validate_user_signup( $user->user_login, $user->user_email );	if ( is_wp_error( $ret['errors'] ) && $ret['errors']->has_errors() ) {	$error = new WP_Error(	'rest_invalid_param',	__( 'Invalid user parameter(s).' ),	array( 'status' => 400 )	);	foreach ( $ret['errors']->errors as $code => $messages ) {	foreach ( $messages as $message ) {	$error->add( $code, $message );	}	$error_data = $error->get_error_data( $code );	if ( $error_data ) {	$error->add_data( $error_data, $code );	}	}	return $error;	}	}	if ( is_multisite() ) {	$user_id = wpmu_create_user( $user->user_login, $user->user_pass, $user->user_email );	if ( ! $user_id ) {	return new WP_Error(	'rest_user_create',	__( 'Error creating new user.' ),	array( 'status' => 500 )	);	}	$user->ID = $user_id;	$user_id = wp_update_user( wp_slash( (array) $user ) );	if ( is_wp_error( $user_id ) ) {	return $user_id;	}	$result = add_user_to_blog( get_site()->id, $user_id, '' );	if ( is_wp_error( $result ) ) {	return $result;	}	} else {	$user_id = wp_insert_user( wp_slash( (array) $user ) );	if ( is_wp_error( $user_id ) ) {	return $user_id;	}	}	$user = get_user_by( 'id', $user_id );	/** * Fires immediately after a user is created or updated via the REST API. * * @since 4.7.0 * * @param WP_User $user Inserted or updated user object. * @param WP_REST_Request $request Request object. * @param bool $creating True when creating a user, false when updating. */	do_action( 'rest_insert_user', $user, $request, true );	if ( ! empty( $request['roles'] ) && ! empty( $schema['properties']['roles'] ) ) {	array_map( array( $user, 'add_role' ), $request['roles'] );	}	if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {	$meta_update = $this->meta->update_value( $request['meta'], $user_id );	if ( is_wp_error( $meta_update ) ) {	return $meta_update;	}	}	$user = get_user_by( 'id', $user_id );	$fields_update = $this->update_additional_fields_for_object( $user, $request );	if ( is_wp_error( $fields_update ) ) {	return $fields_update;	}	$request->set_param( 'context', 'edit' );	/** * Fires after a user is completely created or updated via the REST API. * * @since 5.0.0 * * @param WP_User $user Inserted or updated user object. * @param WP_REST_Request $request Request object. * @param bool $creating True when creating a user, false when updating. */	do_action( 'rest_after_insert_user', $user, $request, true );	$response = $this->prepare_item_for_response( $user, $request );	$response = rest_ensure_response( $response );	$response->set_status( 201 );	$response->header( 'Location', rest_url( sprintf( '%s/%s/%d', $this->namespace, $this->rest_base, $user_id ) ) );	return $response; } 

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