How to populate a custom column with xml in woocommerce wordpress - php

Question

I have created a custom column with a custom plugin.
I dont know if I can use the following to populate this column with a value from an xml.
//POPULATE COLUMN
add_action('manage_posts_custom_column', 'wnetpp_populate_custom_columns3', 10, 2);
function wnetpp_populate_custom_columns3( $column, $post_id ) {
if ($column == 'test_column3') {
$current_product = wc_get_product( $post_id );
$product_sku = $current_product->get_sku();
read_parse_xml($product_sku)
} }
and with a function like the following:
function read_parse_xml($product_sku)
{
$url = 'https://example.com/ProductsUpdates4.xml';
$xml = file_get_contents($url);
$xml = simplexml_load_string($xml);
foreach($xml as $x) {
$sku = $x->sku;
$bfsku = $x->bf_sku;
$suppliersku = $x->supplier_sku;
$price = $x->price;
$availability = $x->availability;
if($sku==$product_sku)
{
echo '<div id="_supprice-' . $post_id . '">' . $price . '</div>';
}
}
}
But nothing is working.
I get a blank page for products.
How I am supposed to check if xml has been accessed.

Answer 1

First I forgot to put a semicolumn ; after read_parse_xml($product_sku)
For each column I created a different read_parse_xml($product_sku) function called read_parse_xml1 2 3 etc.
and I used number_format to format my string to Number like
if($sku==$product_sku)
{
echo '<div id="_supprice-' . $post_id . '">' . number_format( (float)$price,2) . € . '</div>';
}
Even though I dont know if there is another proper way with less code to do it, it worked for me