Trouble with Custom Fields

I added this script :

`/**
* Replace add to cart button in the loop.
*/
function iconic_change_loop_add_to_cart() {
remove_action( ‘woocommerce_after_shop_loop_item’, ‘woocommerce_template_loop_add_to_cart’, 10 );
add_action( ‘woocommerce_after_shop_loop_item’, ‘iconic_template_loop_add_to_cart’, 10 );
}

add_action( ‘init’, ‘iconic_change_loop_add_to_cart’, 10 );

/**
* Use single add to cart button for variable products.
*/
function iconic_template_loop_add_to_cart() {
global $product;

if ( ! $product->is_type( ‘variable’ ) ) {
woocommerce_template_loop_add_to_cart();
return;
}

remove_action( ‘woocommerce_single_variation’, ‘woocommerce_single_variation_add_to_cart_button’, 20 );
add_action( ‘woocommerce_single_variation’, ‘iconic_loop_variation_add_to_cart_button’, 20 );

woocommerce_template_single_add_to_cart();
}

/**
* Customise variable add to cart button for loop.
*
* Remove qty selector and simplify.
*/
function iconic_loop_variation_add_to_cart_button() {
global $product;

?>
<div class=”woocommerce-variation-add-to-cart variations_button”>
<button type=”submit” class=”single_add_to_cart_button button”><?php echo esc_html( $product->single_add_to_cart_text() ); ?></button>
<input type=”hidden” name=”add-to-cart” value=”<?php echo absint( $product->get_id() ); ?>” />
<input type=”hidden” name=”product_id” value=”<?php echo absint( $product->get_id() ); ?>” />
<input type=”hidden” name=”variation_id” class=”variation_id” value=”0″ />
</div>
<?php
}

It add the variable fields to the shop main page but it doesent show any of the plugin custom fields.

Any idea how to edit this and make it work?
Thanks
Glenn

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