Add Donor Creation Date to Donor Export File

add_donor_created_date.php

<?php

function give_add_custom_column_to_export_donor( $default_columns ) {

	$default_columns['date_created'] = esc_html__( 'Donor Created Date', 'give' );

	return $default_columns;
}
add_filter( 'give_export_csv_cols_donors', 'give_add_custom_column_to_export_donor' );
add_filter( 'give_export_donors_get_default_columns', 'give_add_custom_column_to_export_donor' );


function give_export_set_custom_donor_data( $data, $donor ) {
	$created_date         = date_i18n( give_date_format(), strtotime( $donor->date_created ) );
	$data['date_created'] = ! empty( $date_created ) ? $date_created : '- N/A - ';
	

	return $data;
}
add_filter( 'give_export_set_donor_data', 'give_export_set_custom_donor_data', 10, 2 );