Radio button for variable subscriptions

<?php
/**
* Variable subscription product add to cart
*
* @author Prospress
* @package WooCommerce-Subscriptions/Templates
* @version 2.0.9
*/
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! function_exists( 'print_attribute_radio' ) ) {
	function print_attribute_radio( $checked_value, $value, $label, $name ) {
		// This handles < 2.4.0 bw compatibility where text attributes were not sanitized.
		$checked = sanitize_title( $checked_value ) === $checked_value ? checked( $checked_value, sanitize_title( $value ), false ) : checked( $checked_value, $value, false );

		$input_name = 'attribute_' . esc_attr( $name ) ;
		$esc_value = esc_attr( $value );
		$id = esc_attr( $name . '_v_' . $value );
		$filtered_label = apply_filters( 'woocommerce_variation_option_name', $label );
		printf( '<div><input type="radio" name="%1$s" value="%2$s" id="%3$s" %4$s><label for="%3$s"> %5$s</label></div>', $input_name, $esc_value, $id, $checked, $filtered_label );
	}
}

global $product;

$attribute_keys = array_keys( $attributes );
$user_id = get_current_user_id();

do_action( 'woocommerce_before_add_to_cart_form' ); ?>

<form class="variations_form cart" method="post" enctype='multipart/form-data' data-product_id="<?php echo absint( $product->id ); ?>" data-product_variations="<?php echo esc_attr( json_encode( $available_variations ) ) ?>">
	<?php do_action( 'woocommerce_before_variations_form' ); ?>

	<?php if ( empty( $available_variations ) && false !== $available_variations ) : ?>
		<p class="stock out-of-stock"><?php esc_html_e( 'This product is currently out of stock and unavailable.', 'woocommerce-subscriptions' ); ?></p>
	<?php else : ?>
		<?php if ( ! $product->is_purchasable() && 0 != $user_id && 'no' != wcs_get_product_limitation( $product ) && wcs_is_product_limited_for_user( $product, $user_id ) ) : ?>
			<?php $resubscribe_link = wcs_get_users_resubscribe_link_for_product( $product->id ); ?>
				<?php if ( ! empty( $resubscribe_link ) && 'any' == wcs_get_product_limitation( $product ) && wcs_user_has_subscription( $user_id, $product->id, wcs_get_product_limitation( $product ) ) && ! wcs_user_has_subscription( $user_id, $product->id, 'active' ) && ! wcs_user_has_subscription( $user_id, $product->id, 'on-hold' ) ) : // customer has an inactive subscription, maybe offer the renewal button ?>
					<a href="<?php echo esc_url( $resubscribe_link ); ?>" class="button product-resubscribe-link"><?php esc_html_e( 'Resubscribe', 'woocommerce-subscriptions' ); ?></a>
				<?php else : ?>
					<p class="limited-subscription-notice notice"><?php esc_html_e( 'You have an active subscription to this product already.', 'woocommerce-subscriptions' ); ?></p>
				<?php endif; ?>
			<?php else : ?>
				<table class="variations" cellspacing="0″>
					<tbody>
						<?php foreach ( $attributes as $name => $options ) : ?>
							<tr>
								<td class="label"><label for="<?php echo sanitize_title( $name ); ?>"><?php echo wc_attribute_label( $name ); ?></label></td>
								<?php
								$sanitized_name = sanitize_title( $name );
								if ( isset( $_REQUEST[ 'attribute_' . $sanitized_name ] ) ) {
									$checked_value = $_REQUEST[ 'attribute_' . $sanitized_name ];
								} elseif ( isset( $selected_attributes[ $sanitized_name ] ) ) {
									$checked_value = $selected_attributes[ $sanitized_name ];
								} else {
									$checked_value = '';
								}
								?>
								<td class="value">
									<?php
									if ( ! empty( $options ) ) {
										if ( taxonomy_exists( $name ) ) {
											// Get terms if this is a taxonomy – ordered. We need the names too.
											$terms = wc_get_product_terms( $product->id, $name, array( 'fields' => 'all' ) );

											foreach ( $terms as $term ) {
												if ( ! in_array( $term->slug, $options ) ) {
													continue;
												}
												print_attribute_radio( $checked_value, $term->slug, $term->name, $sanitized_name );
											}
										} else {
											foreach ( $options as $option ) {
												print_attribute_radio( $checked_value, $option, $option, $sanitized_name );
											}
										}
									}

									echo end( $attribute_keys ) === $name ? apply_filters( 'woocommerce_reset_variations_link', '<a class="reset_variations" href="#">' . __( 'Clear', 'woocommerce' ) . '</a>' ) : '';
									?>
								</td>
							</tr>
						<?php endforeach; ?>
					</tbody>
				</table>

			<?php do_action( 'woocommerce_before_add_to_cart_button' ); ?>

			<div class="single_variation_wrap" style="display:none;">
				<?php
				/**
				* woocommerce_before_single_variation Hook
				*/
				do_action( 'woocommerce_before_single_variation' );

				/**
				* woocommerce_single_variation hook. Used to output the cart button and placeholder for variation data.
				* @since 2.4.0
				* @hooked woocommerce_single_variation – 10 Empty div for variation data.
				* @hooked woocommerce_single_variation_add_to_cart_button – 20 Qty and cart button.
				*/
				do_action( 'woocommerce_single_variation' );

				/**
				* woocommerce_after_single_variation Hook
				*/
				do_action( 'woocommerce_after_single_variation' );
				?>
			</div>

			<?php do_action( 'woocommerce_after_add_to_cart_button' ); ?>
		<?php endif; ?>
	
	<?php endif; ?>

	<?php do_action( 'woocommerce_after_variations_form' ); ?>
</form>

<?php do_action( 'woocommerce_after_add_to_cart_form' ); ?>

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