WooCommerce Conditionally add text below price on Products - wordpress

Question

Trying to set a custom text message below a WooCommerce product, using the woocommerce_get_price_html filter with a conditional to ceratin products in an array - but it is applying the $addedtext variable to all products, where am I going wrong here?
add_filter( 'woocommerce_get_price_html', 'custom_price_message' );
function custom_price_message( $price ) {
if( is_product (array( 799,796,792)) ) {
$addedtext = '(Upfront Paid in Full Price)';
return $price . '<br /><span class="price-disclaimer">' . $addedtext . '</span>';
}
else {
return $price;
}
}

Answer 1

//add meta box to each product which will take status to add text or not
function add_events_metaboxes() {
add_meta_box('wpt_events_product', 'Add text to product', 'wpt_events_products', 'product', 'side', 'default');
}
add_action( 'add_meta_boxes', 'add_events_metaboxes' );
function wpt_events_products() {
//checkbox to select add text or not
echo '<input id="wp_add_text_to_woo_product" name="text_enable" type="checkbox"></input>';
}
//function will update post meta on save post button
function my_project_updated_post_meta( $post_id ) {
update_post_meta($post_id, 'enable_text', $_POST['text_enable']);
}
add_action( 'save_post', 'my_project_updated_post_meta' );
//function will check for perticular product for which check box is set and assign text for them.
function custom_price_message( $price ) {
$args = array('post_type' => 'product', 'nopaging' => true);
$product_query = new WP_Query($args);
$posts = $product_query->get_posts();
foreach ($posts as $post) {
$text_status = get_post_meta($post->ID,'enable_text',true);
if($text_status == "on") {
$addedtext = '(Upfront Paid in Full Price)';
return $price . '<br /><span class="price-disclaimer">' . $addedtext . '</span>';
}
else {
return $price;
}
}
}
add_filter( 'woocommerce_get_price_html', 'custom_price_message' );

Answer 2

Got this from woo support - works well
add_filter( 'woocommerce_get_price_html', 'custom_price_message' );
function custom_price_message($price) {
global $post;
$product_id = $post->ID;
$my_product_array = array( 799,796,792);
if (in_array($product_id, $my_product_array)) {
$addedtext = '(Upfront Paid in Full Price)';
return $price . '<br /><span class="price-disclaimer">' . $addedtext . '</span>';
}
else {
return $price;
}
}

Answer 3

Not only do the previous code answers fail to persist the checkbox state, they also update all prices, not just individual products. Try this code below instead:
//add meta box to each product which will take status to add text or not
function add_events_metaboxes() {
add_meta_box('wpt_events_product', 'Add \'From only\' text to product', 'wpt_events_products', 'product', 'advanced', 'default');
}
add_action( 'add_meta_boxes', 'add_events_metaboxes' );
function wpt_events_products($post) {
$text_status = get_post_meta( $post->ID, 'enable_text', true) ;
//checkbox to select add text or not
echo '<input id="wp_add_text_to_woo_product" name="text_enable" type="checkbox" '. checked('on', $text_status, false) .'></input>';
}
//function will update post meta on save post button
function my_project_updated_post_meta( $post_id ) {
update_post_meta($post_id, 'enable_text', $_POST['text_enable']);
}
add_action( 'save_post', 'my_project_updated_post_meta' );
//function will check for perticular product for which check box is set and assign text for them.
function custom_price_message( $price, $product ) {
$text_status = get_post_meta( $product->get_id(), 'enable_text', true) ;
if($text_status == "on") {
$addedtext = 'From only ';
return '<span class="price-prefix-text">' . $addedtext . '</span>' . $price;
}
return $price;
}
add_filter( 'woocommerce_get_price_html', 'custom_price_message', 10, 2 );