jakewhiteley · June 12, 2016 20:19
diff --git a/woocommerce-persistant-checkout-2.php b/woocommerce-persistant-checkout-2.php
 <?php
 add_filter( 'woocommerce_checkout_get_value', 'get_persistent_checkout', 10, 2 );

 function get_persistent_checkout ( $value, $index ) 
 {
    $data = WC()->session->get('form_data');
    if ( ! $data || empty($data[$index]) )
        return $value;
    return is_bool($data[$index]) ? (int) $data[$index] : $data[$index];
 }
	<?php
	add_filter( 'woocommerce_checkout_get_value', 'get_persistent_checkout', 10, 2 );

	function get_persistent_checkout ( $value, $index )
	{
	$data = WC()->session->get('form_data');
	if ( ! $data \|\| empty($data[$index]) )
	return $value;
	return is_bool($data[$index]) ? (int) $data[$index] : $data[$index];
	}