Add custom fields to the Leaky Paywall subscriber table with filters

leaky-paywall-subscriber-table-custom-fields.php

<?php


add_filter( 'leaky_paywall_subscribers_columns', 'zeen101_add_column_for_custom_field' );
add_filter( 'manage_leaky_paywall_subscribers_custom_column', 'zeen101_add_data_to_custom_field_column', 10, 3 );

function zeen101_add_column_for_custom_field( $columns ) {
	
	$columns['zeen101_custom_field'] = 'Zeen101 Custom Field';
	return $columns;

}

function zeen101_add_data_to_custom_field_column( $content, $column_name, $user_id )  {

	$settings = get_leaky_paywall_settings();
	$mode = 'off' === $settings['test_mode'] ? 'live' : 'test';

	$custom_field = get_user_meta( $user_id, '_issuem_leaky_paywall_' . $mode . '_zeen101_custom_field', true );

	if ( $custom_field ) {
		return esc_attr( $custom_field );
	}
		
}