Show member's last login on the directory page and optionally include it in the memberslist columns, memberslist CSV export, and the user columns.

pmpro-last-login.php

<?php
/**
 * Display user's last login on the PMPro directory page.
 *
 * Requires the pmpro_last_login field to be set in the shortcode.
 * e.g. [pmpro_member_directory fields="Last Login,pmpro_last_login"]
 *
 * Optional: Display on the memberslist
 * Optional: Display add to the memberslist CSV export
 * Optional: Display on the Users page
 *
 * Note: The CSV export will show the date in YYYY-MM-DD format.
 * This may be customized by changing the date format in the my_pmpro_members_list_last_login function.
 *
 * 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/
 */

 /* Set addditional options here, each option is boolean and accept either true or false */

$show_memberslist     = true; // Display on the memberslist?
$show_memberslist_csv = true; // Display add to the memberslist CSV export?
$show_users_page      = true; // Display on the Users page?

/* End options */

// Get user's last login from pmpro_logins user meta.
function pmpro_get_last_member_login( $user_id ) {
	// if user id is an object, get the id.
	if ( is_object( $user_id ) ) {
		$user_id = $user_id->ID;
	}

	// Let's assume they've never logged in.
	$last_login = 'Never';

	// get the logins data
	$the_logins = get_user_meta( $user_id, 'pmpro_logins', true );
	if ( ! empty( $the_logins ) ) {
		$last_login = $the_logins['last'];
	}

	return $last_login;
}

// Add last login to the user directory results
function my_pmpromd_user_directory_results( $theusers ) {
	foreach ( $theusers as $key => $theuser ) {
		// check if user has last_login
		if ( empty( $theuser->pmpro_last_login ) ) {
			$last_login = pmpro_get_last_member_login( $theuser->ID );
			// update user meta key pmpro_last_login
			update_user_meta( $theuser->ID, 'pmpro_last_login', $last_login );
			$theuser->pmpro_last_login = $last_login;
		}
	}
	return $theusers;
}
add_filter( 'pmpromd_user_directory_results', 'my_pmpromd_user_directory_results' );

/**
 * Display user's last login on the Members List page. (Memberships > Members)
 */

if ( $show_memberslist ) {

	// Adds "Last Login" column to Members List.
	function my_pmpro_add_memberslist_col_company( $columns ) {
		$columns['last_login'] = 'Last Login';
		return $columns;
	}
	add_filter( 'pmpro_manage_memberslist_columns', 'my_pmpro_add_memberslist_col_company' );

	// Fills the "Last Login" column of the Members List.
	function my_pmpro_fill_memberslist_col_company( $colname, $user_id ) {
		if ( 'last_login' === $colname ) {
			echo esc_html( pmpro_get_last_member_login( $user_id ) );
		}
	}
	add_filter( 'pmpro_manage_memberslist_custom_column', 'my_pmpro_fill_memberslist_col_company', 10, 2 );
}

/**
 * Display user's last login on the Members List CSV export. (Memberships > Members)
 */

if ( $show_memberslist_csv ) {

	// Add the column to the CSV export
	function my_pmpro_members_list_csv_extra_columns( $columns ) {
		$columns['last_login'] = 'my_pmpro_members_list_last_login';

		return $columns;
	}
	add_filter( 'pmpro_members_list_csv_extra_columns', 'my_pmpro_members_list_csv_extra_columns', 10 );

	// Call back to get the column a value
	function my_pmpro_members_list_last_login( $user ) {
		$user_id          = $user->ID;
		$last_login_value = pmpro_get_last_member_login( $user_id );

		// Format the date for the CSV export. (YYYY-MM-DD)
		$last_login_value = ! empty( strtotime( $last_login_value ) ) ? date( 'Y-m-d', strtotime( $last_login_value ) ) : $last_login_value;

		return $last_login_value;
	}
}

/**
 * Display user's last login on the Users > All Users page.
 */

if ( $show_users_page ) {

	// Add 'Last Login' Column to Users List Header
	function my_pmpro_manage_users_columns( $columns ) {
		$columns['last_login'] = 'Last Login';
		return $columns;
	}
	add_filter( 'manage_users_columns', 'my_pmpro_manage_users_columns' );

	// Add 'Last Login' Column to Users List Rows
	function my_pmpro_manage_users_custom_column( $value, $column_name, $user_id ) {
		if ( 'last_login' == $column_name ) {
			$value = pmpro_get_last_member_login( $user_id );
		}
		return $value;
	}
	add_action( 'manage_users_custom_column', 'my_pmpro_manage_users_custom_column', 10, 3 );
}