Woocommerce: function to update all products - php

Question

I have an issue with my Woocommerce products. This issue is fixed if I just update the product (edit the product and click in the Update button) with no changes at all.
I have around 2000 products in my site, then I am thinking of doing this using a function in my function.php file.
It should be something like this, I just need the line which update the product.
function update_all_products(){
// getting all products
$products = get_posts( $args );
// Going through all products
foreach ( $products as $key => $value ) {
// the product ID
$product_id = $value->ID;
// update product
update_post_meta...(NEED HELP HERE)...
} //..end foreach
}
// fire the function
update_all_products();

Answer 1

Try the following, that will update your products by 200 each time to avoid problems
(if you have variable products also, the post_type arg will need to be product & product_variation):
add_action( 'woocommerce_loaded', 'update_products_by_x' );
function update_products_by_x(){
$limit = 200;
// getting all products
$products_ids = get_posts( array(
'post_type' => 'product', // or ['product','product_variation'],
'numberposts' => $limit,
'post_status' => 'publish',
'fields' => 'ids',
'meta_query' => array( array(
'key' => '_sync_updated',
'compare' => 'NOT EXISTS',
) )
) );
// Loop through product Ids
foreach ( $products_ids as $product_id ) {
// Get the WC_Product object
$product = wc_get_product($product_id);
// Mark product as updated
$product->update_meta_data( '_sync_updated', true );
$product->save();
}
}
Code goes in function.php file of your active child theme (or active theme). Tested and works.
Each time you will browse a page of your site the function will be triggered. processing products by 200 is just more secure and will avoid a timeout or errors.
You can increase that number to 500 for example, setting the $limit to 500