mypmpro-first-last-name-directory-profile-title.php

<?php //do not copy

/**
 * This recipe unhooks the existing document title parts hook and
 * uses the member's first and last names in the title.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

// Unhook the existing function.
remove_filter( 'document_title_parts', 'pmpromd_document_title_parts' );

// Define a new function that uses first_name and last_name.
function mypmpro_custom_document_title_parts_with_names( $title_parts ) {
	global $main_post_id, $post, $pmpro_pages;

    if( empty( $pmpro_pages['profile'] ) ) {
        return $title_parts;
    }

    if( ! is_page( $pmpro_pages['profile'] ) ){
        return $title_parts;
    }

	if ( isset( $post->ID ) && $post->ID == $main_post_id ) {
		$pu = pmpromd_get_user();

		if ( ! empty( $pu->first_name ) || ! empty( $pu->last_name ) ) {
			$first_name = isset( $pu->first_name ) ? $pu->first_name : '';
			$last_name  = isset( $pu->last_name ) ? $pu->last_name : '';
      
            if( empty( $first_name ) && empty( $last_name ) ) {
                $display_name = pmpro_member_directory_get_member_display_name( $pu );

                if ( ! empty( $display_name ) ) {
                    $title_parts['title'] = $display_name; // Set the main title part.
                }
            } else {
                $title_parts['title'] = trim( $first_name . ' ' . $last_name );
            }
			
		}
	}

	return $title_parts;
}
add_filter( 'document_title_parts', 'mypmpro_custom_document_title_parts_with_names', 20 );