CSV export patch for checkboxes

functions.php

<?php
add_filter( 'tribe_events_tickets_attendees_table_column', 'tec_et_csv_override_checkbox_patch', 99, 3 );

function tec_et_csv_override_checkbox_patch( $existing, $item, $column ) {
	$meta_data = get_post_meta( $item['attendee_id'], Tribe__Tickets_Plus__Meta::META_KEY, true );
	
	/**
	 * Allow plugins to remove support for checkbox field values being displayed or override the text shown.
	 *
	 * @since 4.10.4
	 *
	 * @param string|false $checkbox_label Label value of checkbox that is checked, return false to turn off label support.
	 */
	$checkbox_label = apply_filters( 'tribe_events_tickets_plus_attendees_list_checkbox_label', __( 'Checked', 'event-tickets-plus' ) );
	
	if ( false === $checkbox_label ) {
		return $existing;
	}
	
	// Validate if Checkbox type.
	$checkbox_parts = explode( '_', $column );
	
	if ( 2 !== count( $checkbox_parts ) ) {
		return $existing;
	}
	
	if ( isset( $meta_data[ $column ] ) ) {
		return $checkbox_label;
	}
	
	$key = $checkbox_parts[0] . '_' . md5( $checkbox_parts[1] );
	
	if ( isset( $meta_data[ $key ] ) ) {
		return $checkbox_label;
	}
	
	// check for non-hashed data.
	foreach ( $meta_data as $key => $value ) {
		if ( strpos( $key, $checkbox_parts[0] ) !== false ) {
			$key_parts = explode( '_', $key );
			if ( ( md5( $key_parts[1] ) === $checkbox_parts[1] ) && ! empty( $value ) ) {
				return $checkbox_label;
			}
		}
	}
	
	return $existing;
}