Patched xprofile_sync_wp_profile() for BuddyPress 9.2+

bp-xprofile-functions.php

<?php

/**
 * Syncs Xprofile data to the standard built in WordPress profile data.
 *
 * @since 1.0.0
 * @since 9.2.0 Adds the $args arguments to catch hook's additional arguments.
 *
 * @param int   $user_id ID of the user to sync.
 * @param array $args    Hook's additional arguments.
 * @return bool
 */
function xprofile_sync_wp_profile( $user_id = 0, ...$args ) {

	// Bail if profile syncing is disabled.
	if ( bp_disable_profile_sync() ) {
		return true;
	}

	if ( empty( $user_id ) ) {
		$user_id = bp_loggedin_user_id();
	}

	if ( empty( $user_id ) ) {
		return false;
	}

	$fullname_field_id = (int) bp_xprofile_fullname_field_id();
	$usermeta          = array();
	$userdata          = array();

	if ( isset( $args[1]['meta'] ) ) {
		$usermeta = $args[1]['meta'];
	} elseif ( isset( $args[3] ) ) {
		$usermeta = $args[3];
	}

	if ( isset( $usermeta['profile_field_ids'] ) ) {
		$xprofile_fields = wp_parse_id_list( $usermeta['profile_field_ids'] );
		$xprofile_fields = array_diff( $xprofile_fields, array( $fullname_field_id ) );

		foreach ( $xprofile_fields as $xprofile_field_id ) {
			$field_type = bp_xprofile_get_field_type( $xprofile_field_id );

			$field_key = 'field_' . $xprofile_field_id;
			if ( isset( $field_type->wp_user_key ) && isset( $usermeta[ $field_key ] ) && $usermeta[ $field_key ] ) {
				$userdata[ $field_type->wp_user_key ] = $usermeta[ $field_key ];
			}
		}
	}

	$fullname = xprofile_get_field_data( $fullname_field_id, $user_id );
	$space    = strpos( $fullname, ' ' );

	if ( false === $space ) {
		if ( ! isset( $userdata['first_name'] ) ) {
			$userdata['first_name'] = $fullname;
		}

		if ( ! isset( $userdata['last_name'] ) ) {
			$userdata['last_name'] = '';
		}
	} else {
		if ( ! isset( $userdata['first_name'] ) ) {
			$userdata['first_name'] = substr( $fullname, 0, $space );
		}

		if ( ! isset( $userdata['last_name'] ) ) {
			$userdata['last_name'] = trim( substr( $fullname, $space, strlen( $fullname ) ) );
		}
	}

	bp_update_user_meta( $user_id, 'nickname',   $fullname  );
	bp_update_user_meta( $user_id, 'first_name', $userdata['first_name'] );
	bp_update_user_meta( $user_id, 'last_name',  $userdata['last_name']  );

	wp_update_user( array( 'ID' => $user_id, 'display_name' => $fullname ) );
}
add_action( 'bp_core_signup_user', 'xprofile_sync_wp_profile', 10, 5 );
add_action( 'bp_core_activated_user', 'xprofile_sync_wp_profile', 10, 3 );