[FIXED] Remove "Choose an option" from variable product dropdowns in Woocommerce 3

Issue

I would like to remove from the dropdown of variations in WooCommerce product page following "option":

I found plenty of, apparently not working codes which should do the job. Probably outdated to the latest WooCommerce version.

What I tried and is partially working:

add_filter( 'woocommerce_dropdown_variation_attribute_options_args', 'my_wc_filter_dropdown_args', 10 );
function my_wc_filter_dropdown_args( $args ) {
    $args['show_option_none'] = '';
    return $args;
}

This is only working when I set some text between '', not empty. When it's added into functions.php exactly like above, it's without change and set to default text - "Select an option" like on the picture. I am not sure what's wrong here. I also tried "false" or "none" but didn't work with either option.

If anyone could help me with this I would be grateful.

I am using latest WP 4.9.6 and latest of WooCommerce (whatever version it is). Everything is updated to the latest version, even PHP (7.2).

Solution

The correct way to do it is to use woocommerce_dropdown_variation_attribute_options_html filter hook instead. Below the screenshot for normal variable product with default attribute dropdowns:

So there is 2 different case:

1) Removing this html option completelly**:

add_filter( 'woocommerce_dropdown_variation_attribute_options_html', 'filter_dropdown_option_html', 12, 2 );
function filter_dropdown_option_html( $html, $args ) {
    $show_option_none_text = $args['show_option_none'] ? $args['show_option_none'] : __( 'Choose an option', 'woocommerce' );
    $show_option_none_html = '<option value="">' . esc_html( $show_option_none_text ) . '</option>';

    $html = str_replace($show_option_none_html, '', $html);

    return $html;
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

The html option is removed completely, keeping only option with product attribute values:

---

2) Remove only the text "Select an option" (you will have an option without label name):

add_filter( 'woocommerce_dropdown_variation_attribute_options_html', 'filter_dropdown_option_html', 12, 2 );
function filter_dropdown_option_html( $html, $args ) {
    $show_option_none_text = $args['show_option_none'] ? $args['show_option_none'] : __( 'Choose an option', 'woocommerce' );
    $show_option_none_text = esc_html( $show_option_none_text );

    $html = str_replace($show_option_none_text, '', $html);

    return $html;
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

All code is tested on latest Woocommerce version 3.4.x

Answered By - LoicTheAztec